1849972390560 has 144 divisors (see below), whose sum is σ = 7214892362496. Its totient is φ = 422850829824.

The previous prime is 1849972390463. The next prime is 1849972390561. The reversal of 1849972390560 is 650932799481.

1849972390560 is a `hidden beast` number, since 1 + 8 + 49 + 9 + 7 + 23 + 9 + 0 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×1849972390560² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (1849972390561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91754424 + ... + 91774583.

It is an arithmetic number, because the mean of its divisors is an integer number (50103419184).

It is a 1-persistent number, because it is pandigital, but 2⋅1849972390560 = 3699944781120 is not.

Almost surely, 2^{1849972390560} is an apocalyptic number.

1849972390560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1849972390560 is an abundant number, since it is smaller than the sum of its proper divisors (5364919971936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1849972390560 is a wasteful number, since it uses less digits than its factorization.

1849972390560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183529035 (or 183529024 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 63.

The spelling of 1849972390560 in words is "one trillion, eight hundred forty-nine billion, nine hundred seventy-two million, three hundred ninety thousand, five hundred sixty".