1851746482080 has 480 divisors, whose sum is σ = 7140664859328. Its totient is φ = 448187904000.

The previous prime is 1851746482049. The next prime is 1851746482093. The reversal of 1851746482080 is 802846471581.

1851746482080 is a `hidden beast` number, since 1 + 8 + 517 + 4 + 6 + 48 + 2 + 0 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

It is a super-2 number, since 2×1851746482080² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 91655980 + ... + 91676180.

Almost surely, 2^{1851746482080} is an apocalyptic number.

1851746482080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1851746482080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3570332429664).

1851746482080 is an abundant number, since it is smaller than the sum of its proper divisors (5288918377248).

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

1851746482080 is a wasteful number, since it uses less digits than its factorization.

1851746482080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20882 (or 20865 counting only the distinct ones).

The product of its (nonzero) digits is 3440640, while the sum is 54.

The spelling of 1851746482080 in words is "one trillion, eight hundred fifty-one billion, seven hundred forty-six million, four hundred eighty-two thousand, eighty".