28407948900 has 36 divisors (see below), whose sum is σ = 82193666352. Its totient is φ = 7575452960.

The previous prime is 28407948883. The next prime is 28407948913. The reversal of 28407948900 is 984970482.

It is a super-2 number, since 2×28407948900² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

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, 47346282 + ... + 47346881.

Almost surely, 2^28407948900 is an apocalyptic number.

28407948900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28407948900 is an abundant number, since it is smaller than the sum of its proper divisors (53785717452).

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

28407948900 is a wasteful number, since it uses less digits than its factorization.

28407948900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94693180 (or 94693173 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 51.

The spelling of 28407948900 in words is "twenty-eight billion, four hundred seven million, nine hundred forty-eight thousand, nine hundred".