15715871464 has 16 divisors (see below), whose sum is σ = 29478490020. Its totient is φ = 7854940800.

The previous prime is 15715871461. The next prime is 15715871473. The reversal of 15715871464 is 46417851751.

It can be written as a sum of positive squares in 2 ways, for example, as 11937310564 + 3778560900 = 109258^2 + 61470^2 .

It is not an unprimeable number, because it can be changed into a prime (15715871461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351987 + ... + 394114.

Almost surely, 2^15715871464 is an apocalyptic number.

It is an amenable number.

15715871464 is a deficient number, since it is larger than the sum of its proper divisors (13762618556).

15715871464 is a wasteful number, since it uses less digits than its factorization.

15715871464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748740 (or 748736 counting only the distinct ones).

The product of its digits is 940800, while the sum is 49.

The spelling of 15715871464 in words is "fifteen billion, seven hundred fifteen million, eight hundred seventy-one thousand, four hundred sixty-four".