28077300464 has 20 divisors (see below), whose sum is σ = 57262916040. Its totient is φ = 13299773760.

The previous prime is 28077300421. The next prime is 28077300497. The reversal of 28077300464 is 46400377082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46179467 + ... + 46180074.

It is an arithmetic number, because the mean of its divisors is an integer number (2863145802).

Almost surely, 2^28077300464 is an apocalyptic number.

It is an amenable number.

28077300464 is an abundant number, since it is smaller than the sum of its proper divisors (29185615576).

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

28077300464 is a wasteful number, since it uses less digits than its factorization.

28077300464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92359568 (or 92359562 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 41.

The spelling of 28077300464 in words is "twenty-eight billion, seventy-seven million, three hundred thousand, four hundred sixty-four".