215129738596 has 24 divisors (see below), whose sum is σ = 376982436096. Its totient is φ = 107420570400.

The previous prime is 215129738587. The next prime is 215129738627. The reversal of 215129738596 is 695837921512.

215129738596 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 215129738596.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9954915 + ... + 9976501.

It is an arithmetic number, because the mean of its divisors is an integer number (15707601504).

Almost surely, 2^215129738596 is an apocalyptic number.

It is an amenable number.

215129738596 is a deficient number, since it is larger than the sum of its proper divisors (161852697500).

215129738596 is a wasteful number, since it uses less digits than its factorization.

215129738596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24819 (or 24817 counting only the distinct ones).

The product of its digits is 8164800, while the sum is 58.

The spelling of 215129738596 in words is "two hundred fifteen billion, one hundred twenty-nine million, seven hundred thirty-eight thousand, five hundred ninety-six".