28696440600 has 72 divisors (see below), whose sum is σ = 96372219060. Its totient is φ = 7652383680.

The previous prime is 28696440599. The next prime is 28696440683. The reversal of 28696440600 is 604469682.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7969434 + ... + 7973033.

Almost surely, 2^28696440600 is an apocalyptic number.

28696440600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28696440600 is an abundant number, since it is smaller than the sum of its proper divisors (67675778460).

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

28696440600 is a wasteful number, since it uses less digits than its factorization.

28696440600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15942489 (or 15942477 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The spelling of 28696440600 in words is "twenty-eight billion, six hundred ninety-six million, four hundred forty thousand, six hundred".