215794423716 has 24 divisors (see below), whose sum is σ = 503693851584. Its totient is φ = 71906684640.

The previous prime is 215794423601. The next prime is 215794423739. The reversal of 215794423716 is 617324497512.

It is a happy number.

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, 3062455 + ... + 3132126.

It is an arithmetic number, because the mean of its divisors is an integer number (20987243816).

Almost surely, 2^215794423716 is an apocalyptic number.

It is an amenable number.

215794423716 is an abundant number, since it is smaller than the sum of its proper divisors (287899427868).

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

215794423716 is a wasteful number, since it uses less digits than its factorization.

215794423716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6197491 (or 6197489 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 51.

The spelling of 215794423716 in words is "two hundred fifteen billion, seven hundred ninety-four million, four hundred twenty-three thousand, seven hundred sixteen".