28853540400 has 60 divisors (see below), whose sum is σ = 92427511592. Its totient is φ = 7694277120.

The previous prime is 28853540393. The next prime is 28853540413. The reversal of 28853540400 is 404535882.

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×28853540400² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12021109 + ... + 12023508.

Almost surely, 2^28853540400 is an apocalyptic number.

28853540400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28853540400 is an abundant number, since it is smaller than the sum of its proper divisors (63573971192).

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

28853540400 is a wasteful number, since it uses less digits than its factorization.

28853540400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24044638 (or 24044627 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 39.

The spelling of 28853540400 in words is "twenty-eight billion, eight hundred fifty-three million, five hundred forty thousand, four hundred".