28820759132 has 144 divisors (see below), whose sum is σ = 59910520320. Its totient is φ = 12090165120.

The previous prime is 28820759131. The next prime is 28820759147. The reversal of 28820759132 is 23195702882.

It is a super-2 number, since 2×28820759132² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (47) 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 (28820759131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 68784419 + ... + 68784837.

It is an arithmetic number, because the mean of its divisors is an integer number (416045280).

Almost surely, 2^28820759132 is an apocalyptic number.

28820759132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28820759132 is an abundant number, since it is smaller than the sum of its proper divisors (31089761188).

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

28820759132 is a wasteful number, since it uses less digits than its factorization.

28820759132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672 (or 659 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 28820759132 in words is "twenty-eight billion, eight hundred twenty million, seven hundred fifty-nine thousand, one hundred thirty-two".