28490865612612 has 48 divisors (see below), whose sum is σ = 73901864827392. Its totient is φ = 8483632439040.

The previous prime is 28490865612563. The next prime is 28490865612641. The reversal of 28490865612612 is 21621656809482.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2945700873 + ... + 2945710544.

It is an arithmetic number, because the mean of its divisors is an integer number (1539622183904).

Almost surely, 2^{28490865612612} is an apocalyptic number.

It is an amenable number.

28490865612612 is an abundant number, since it is smaller than the sum of its proper divisors (45410999214780).

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

28490865612612 is a wasteful number, since it uses less digits than its factorization.

28490865612612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5891411468 (or 5891411466 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 60.

The spelling of 28490865612612 in words is "twenty-eight trillion, four hundred ninety billion, eight hundred sixty-five million, six hundred twelve thousand, six hundred twelve".