28665170464 has 48 divisors (see below), whose sum is σ = 65380186368. Its totient is φ = 12116777472.

The previous prime is 28665170431. The next prime is 28665170507. The reversal of 28665170464 is 46407156682.

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, 860152 + ... + 892855.

It is an arithmetic number, because the mean of its divisors is an integer number (1362087216).

Almost surely, 2^28665170464 is an apocalyptic number.

It is an amenable number.

28665170464 is an abundant number, since it is smaller than the sum of its proper divisors (36715015904).

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

28665170464 is a wasteful number, since it uses less digits than its factorization.

28665170464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1753097 (or 1753089 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 49.

The spelling of 28665170464 in words is "twenty-eight billion, six hundred sixty-five million, one hundred seventy thousand, four hundred sixty-four".