1807981112 has 64 divisors (see below), whose sum is σ = 3911846400. Its totient is φ = 767376000.

The previous prime is 1807981111. The next prime is 1807981117. The reversal of 1807981112 is 2111897081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1807981111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4118189 + ... + 4118627.

It is an arithmetic number, because the mean of its divisors is an integer number (61122600).

Almost surely, 2^1807981112 is an apocalyptic number.

It is an amenable number.

1807981112 is an abundant number, since it is smaller than the sum of its proper divisors (2103865288).

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

1807981112 is a wasteful number, since it uses less digits than its factorization.

1807981112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996 (or 992 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 38.

The square root of 1807981112 is about 42520.3611461615. The cubic root of 1807981112 is about 1218.2356274914.

The spelling of 1807981112 in words is "one billion, eight hundred seven million, nine hundred eighty-one thousand, one hundred twelve".