28057722360 has 32 divisors (see below), whose sum is σ = 84173167440. Its totient is φ = 7482059264.

The previous prime is 28057722359. The next prime is 28057722383. The reversal of 28057722360 is 6322775082.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

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, 116907057 + ... + 116907296.

Almost surely, 2^28057722360 is an apocalyptic number.

28057722360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28057722360 is an abundant number, since it is smaller than the sum of its proper divisors (56115445080).

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

28057722360 is a wasteful number, since it uses less digits than its factorization.

28057722360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233814367 (or 233814363 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 42.

The spelling of 28057722360 in words is "twenty-eight billion, fifty-seven million, seven hundred twenty-two thousand, three hundred sixty".