215877751472 has 10 divisors (see below), whose sum is σ = 418263143508. Its totient is φ = 107938875728.

The previous prime is 215877751447. The next prime is 215877751543. The reversal of 215877751472 is 274157778512.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6746179718 + ... + 6746179749.

Almost surely, 2^215877751472 is an apocalyptic number.

It is an amenable number.

215877751472 is a deficient number, since it is larger than the sum of its proper divisors (202385392036).

215877751472 is a wasteful number, since it uses less digits than its factorization.

215877751472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13492359475 (or 13492359469 counting only the distinct ones).

The product of its digits is 7683200, while the sum is 56.

The spelling of 215877751472 in words is "two hundred fifteen billion, eight hundred seventy-seven million, seven hundred fifty-one thousand, four hundred seventy-two".