12931511642 has 8 divisors (see below), whose sum is σ = 22168305696. Its totient is φ = 5542076412.

The previous prime is 12931511609. The next prime is 12931511689. The reversal of 12931511642 is 24611513921.

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

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, 461839688 + ... + 461839715.

It is an arithmetic number, because the mean of its divisors is an integer number (2771038212).

Almost surely, 2^12931511642 is an apocalyptic number.

12931511642 is a deficient number, since it is larger than the sum of its proper divisors (9236794054).

12931511642 is an equidigital number, since it uses as much as digits as its factorization.

12931511642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923679412.

The product of its digits is 12960, while the sum is 35.

The spelling of 12931511642 in words is "twelve billion, nine hundred thirty-one million, five hundred eleven thousand, six hundred forty-two".