215364715044 has 24 divisors (see below), whose sum is σ = 510017934048. Its totient is φ = 70716771840.

The previous prime is 215364714997. The next prime is 215364715099. The reversal of 215364715044 is 440517463512.

It is a junction number, because it is equal to n+sod(n) for n = 215364714987 and 215364715005.

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, 133932477 + ... + 133934084.

It is an arithmetic number, because the mean of its divisors is an integer number (21250747252).

Almost surely, 2^215364715044 is an apocalyptic number.

It is an amenable number.

215364715044 is an abundant number, since it is smaller than the sum of its proper divisors (294653219004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215364715044 is a wasteful number, since it uses less digits than its factorization.

215364715044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267866635 (or 267866633 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 42.

The spelling of 215364715044 in words is "two hundred fifteen billion, three hundred sixty-four million, seven hundred fifteen thousand, forty-four".