215017776028 has 48 divisors (see below), whose sum is σ = 431387155584. Its totient is φ = 92882341440.

The previous prime is 215017775993. The next prime is 215017776091. The reversal of 215017776028 is 820677710512.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1465750 + ... + 1605757.

It is an arithmetic number, because the mean of its divisors is an integer number (8987232408).

Almost surely, 2^215017776028 is an apocalyptic number.

It is an amenable number.

215017776028 is an abundant number, since it is smaller than the sum of its proper divisors (216369379556).

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

215017776028 is a wasteful number, since it uses less digits than its factorization.

215017776028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3071602 (or 3071600 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 46.

The spelling of 215017776028 in words is "two hundred fifteen billion, seventeen million, seven hundred seventy-six thousand, twenty-eight".