28627892660 has 24 divisors (see below), whose sum is σ = 61015869600. Its totient is φ = 11280243744.

The previous prime is 28627892651. The next prime is 28627892681. The reversal of 28627892660 is 6629872682.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 28627892596 and 28627892605.

It is a congruent 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, 10680710 + ... + 10683389.

It is an arithmetic number, because the mean of its divisors is an integer number (2542327900).

Almost surely, 2^28627892660 is an apocalyptic number.

28627892660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28627892660 is an abundant number, since it is smaller than the sum of its proper divisors (32387976940).

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

28627892660 is a wasteful number, since it uses less digits than its factorization.

28627892660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21364175 (or 21364173 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 56.

The spelling of 28627892660 in words is "twenty-eight billion, six hundred twenty-seven million, eight hundred ninety-two thousand, six hundred sixty".