15715871402 has 32 divisors (see below), whose sum is σ = 29416587264. Its totient is φ = 6117678000.

The previous prime is 15715871389. The next prime is 15715871419. The reversal of 15715871402 is 20417851751.

It is a super-2 number, since 2×15715871402² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15715871402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132923 + ... + 221585.

It is an arithmetic number, because the mean of its divisors is an integer number (919268352).

Almost surely, 2^15715871402 is an apocalyptic number.

15715871402 is a deficient number, since it is larger than the sum of its proper divisors (13700715862).

15715871402 is a wasteful number, since it uses less digits than its factorization.

15715871402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89834.

The product of its (nonzero) digits is 78400, while the sum is 41.

The spelling of 15715871402 in words is "fifteen billion, seven hundred fifteen million, eight hundred seventy-one thousand, four hundred two".