28492700656 has 320 divisors, whose sum is σ = 72681062400. Its totient is φ = 10538035200.

The previous prime is 28492700627. The next prime is 28492700659. The reversal of 28492700656 is 65600729482.

It is a super-4 number, since 4×28492700656⁴ (a number of 43 digits) contains 4444 as substring.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28492700659) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 135036391 + ... + 135036601.

It is an arithmetic number, because the mean of its divisors is an integer number (227128320).

Almost surely, 2^28492700656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28492700656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36340531200).

28492700656 is an abundant number, since it is smaller than the sum of its proper divisors (44188361744).

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

28492700656 is a wasteful number, since it uses less digits than its factorization.

28492700656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388 (or 382 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 28492700656 in words is "twenty-eight billion, four hundred ninety-two million, seven hundred thousand, six hundred fifty-six".