215409474796 has 24 divisors (see below), whose sum is σ = 395785822320. Its totient is φ = 102438676032.

The previous prime is 215409474739. The next prime is 215409474817. The reversal of 215409474796 is 697474904512.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a self number, because there is not a number n which added to its sum of digits gives 215409474796.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13850275 + ... + 13865818.

It is an arithmetic number, because the mean of its divisors is an integer number (16491075930).

Almost surely, 2^215409474796 is an apocalyptic number.

It is an amenable number.

215409474796 is a deficient number, since it is larger than the sum of its proper divisors (180376347524).

215409474796 is a wasteful number, since it uses less digits than its factorization.

215409474796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27716193 (or 27716191 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 58.

The spelling of 215409474796 in words is "two hundred fifteen billion, four hundred nine million, four hundred seventy-four thousand, seven hundred ninety-six".