112981638402 has 48 divisors (see below), whose sum is σ = 253986707520. Its totient is φ = 37641745872.

The previous prime is 112981638401. The next prime is 112981638467. The reversal of 112981638402 is 204836189211.

112981638402 is a `hidden beast` number, since 1 + 1 + 2 + 9 + 8 + 1 + 638 + 4 + 0 + 2 = 666.

112981638402 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×112981638402² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (112981638401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 933948 + ... + 1047960.

It is an arithmetic number, because the mean of its divisors is an integer number (5291389740).

Almost surely, 2^112981638402 is an apocalyptic number.

112981638402 is an abundant number, since it is smaller than the sum of its proper divisors (141005069118).

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

112981638402 is a wasteful number, since it uses less digits than its factorization.

112981638402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116069 (or 116057 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The spelling of 112981638402 in words is "one hundred twelve billion, nine hundred eighty-one million, six hundred thirty-eight thousand, four hundred two".