28852787580 has 48 divisors (see below), whose sum is σ = 82666598784. Its totient is φ = 7515144000.

The previous prime is 28852787563. The next prime is 28852787591. The reversal of 28852787580 is 8578725882.

It is a super-2 number, since 2×28852787580² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

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, 5589046 + ... + 5594205.

It is an arithmetic number, because the mean of its divisors is an integer number (1722220808).

Almost surely, 2^28852787580 is an apocalyptic number.

28852787580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28852787580 is an abundant number, since it is smaller than the sum of its proper divisors (53813811204).

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

28852787580 is a wasteful number, since it uses less digits than its factorization.

28852787580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11183306 (or 11183304 counting only the distinct ones).

The product of its (nonzero) digits is 20070400, while the sum is 60.

The spelling of 28852787580 in words is "twenty-eight billion, eight hundred fifty-two million, seven hundred eighty-seven thousand, five hundred eighty".