15642694013 has 32 divisors (see below), whose sum is σ = 16876339200. Its totient is φ = 14465981376.

The previous prime is 15642694003. The next prime is 15642694049. The reversal of 15642694013 is 31049624651.

It is not a de Polignac number, because 15642694013 - 2¹² = 15642689917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15642694003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23954795 + ... + 23955447.

It is an arithmetic number, because the mean of its divisors is an integer number (527385600).

Almost surely, 2^15642694013 is an apocalyptic number.

It is an amenable number.

15642694013 is a deficient number, since it is larger than the sum of its proper divisors (1233645187).

15642694013 is a wasteful number, since it uses less digits than its factorization.

15642694013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001.

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 15642694013 in words is "fifteen billion, six hundred forty-two million, six hundred ninety-four thousand, thirteen".