2015717530939 has 16 divisors (see below), whose sum is σ = 2446097531328. Its totient is φ = 1621518446592.

The previous prime is 2015717530903. The next prime is 2015717530951. The reversal of 2015717530939 is 9390357175102.

It is a cyclic number.

It is not a de Polignac number, because 2015717530939 - 2³⁵ = 1981357792571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2015717530999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23950632 + ... + 24034645.

It is an arithmetic number, because the mean of its divisors is an integer number (152881095708).

Almost surely, 2^{2015717530939} is an apocalyptic number.

2015717530939 is a deficient number, since it is larger than the sum of its proper divisors (430380000389).

2015717530939 is a wasteful number, since it uses less digits than its factorization.

2015717530939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47985654.

The product of its (nonzero) digits is 1786050, while the sum is 52.

The spelling of 2015717530939 in words is "two trillion, fifteen billion, seven hundred seventeen million, five hundred thirty thousand, nine hundred thirty-nine".