15042521613 has 12 divisors (see below), whose sum is σ = 23331258240. Its totient is φ = 8595726552.

The previous prime is 15042521591. The next prime is 15042521651. The reversal of 15042521613 is 31612524051.

It is not a de Polignac number, because 15042521613 - 2⁹ = 15042521101 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15042521513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51164893 + ... + 51165186.

It is an arithmetic number, because the mean of its divisors is an integer number (1944271520).

Almost surely, 2^15042521613 is an apocalyptic number.

It is an amenable number.

15042521613 is a deficient number, since it is larger than the sum of its proper divisors (8288736627).

15042521613 is a wasteful number, since it uses less digits than its factorization.

15042521613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102330096 (or 102330089 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 15042521613 in words is "fifteen billion, forty-two million, five hundred twenty-one thousand, six hundred thirteen".