12487991038 has 8 divisors (see below), whose sum is σ = 18732494088. Its totient is φ = 6243826344.

The previous prime is 12487991029. The next prime is 12487991041. The reversal of 12487991038 is 83019978421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51420 + ... + 166192.

It is an arithmetic number, because the mean of its divisors is an integer number (2341561761).

Almost surely, 2^12487991038 is an apocalyptic number.

12487991038 is a deficient number, since it is larger than the sum of its proper divisors (6244503050).

12487991038 is a wasteful number, since it uses less digits than its factorization.

12487991038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169178.

The product of its (nonzero) digits is 870912, while the sum is 52.

The spelling of 12487991038 in words is "twelve billion, four hundred eighty-seven million, nine hundred ninety-one thousand, thirty-eight".