1872450161118 has 48 divisors (see below), whose sum is σ = 4061788548480. Its totient is φ = 623409867072.

The previous prime is 1872450161117. The next prime is 1872450161129. The reversal of 1872450161118 is 8111610542781.

It is a happy number.

1872450161118 is a `hidden beast` number, since 1 + 8 + 7 + 24 + 5 + 0 + 1 + 611 + 1 + 8 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1872450161117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96642880 + ... + 96662252.

It is an arithmetic number, because the mean of its divisors is an integer number (84620594760).

Almost surely, 2^{1872450161118} is an apocalyptic number.

1872450161118 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1872450161118 is an abundant number, since it is smaller than the sum of its proper divisors (2189338387362).

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

1872450161118 is a wasteful number, since it uses less digits than its factorization.

1872450161118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25473 (or 25470 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 45.

The spelling of 1872450161118 in words is "one trillion, eight hundred seventy-two billion, four hundred fifty million, one hundred sixty-one thousand, one hundred eighteen".