15474849971912 has 32 divisors (see below), whose sum is σ = 29118719992800. Its totient is φ = 7709859569664.

The previous prime is 15474849971857. The next prime is 15474849971923. The reversal of 15474849971912 is 21917994847451.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 99672008 + ... + 99827144.

It is an arithmetic number, because the mean of its divisors is an integer number (909959999775).

Almost surely, 2^{15474849971912} is an apocalyptic number.

It is an amenable number.

15474849971912 is a deficient number, since it is larger than the sum of its proper divisors (13643870020888).

15474849971912 is a wasteful number, since it uses less digits than its factorization.

15474849971912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199485 (or 199481 counting only the distinct ones).

The product of its digits is 182891520, while the sum is 71.

The spelling of 15474849971912 in words is "fifteen trillion, four hundred seventy-four billion, eight hundred forty-nine million, nine hundred seventy-one thousand, nine hundred twelve".