28490236160 has 72 divisors (see below), whose sum is σ = 71210180160. Its totient is φ = 10900600832.

The previous prime is 28490236129. The next prime is 28490236213. The reversal of 28490236160 is 6163209482.

It is a super-3 number, since 3×28490236160³ (a number of 32 digits) contains 333 as substring.

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, 454430 + ... + 513309.

It is an arithmetic number, because the mean of its divisors is an integer number (989030280).

Almost surely, 2^28490236160 is an apocalyptic number.

28490236160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28490236160 is an abundant number, since it is smaller than the sum of its proper divisors (42719944000).

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

28490236160 is an equidigital number, since it uses as much as digits as its factorization.

28490236160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967783 (or 967769 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The spelling of 28490236160 in words is "twenty-eight billion, four hundred ninety million, two hundred thirty-six thousand, one hundred sixty".