28663265364 has 12 divisors (see below), whose sum is σ = 66880952544. Its totient is φ = 9554421784.

The previous prime is 28663265359. The next prime is 28663265399. The reversal of 28663265364 is 46356236682.

It is a tau number, because it is divible by the number of its divisors (12).

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, 1194302712 + ... + 1194302735.

It is an arithmetic number, because the mean of its divisors is an integer number (5573412712).

Almost surely, 2^28663265364 is an apocalyptic number.

It is an amenable number.

28663265364 is an abundant number, since it is smaller than the sum of its proper divisors (38217687180).

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

28663265364 is a wasteful number, since it uses less digits than its factorization.

28663265364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2388605454 (or 2388605452 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 51.

The spelling of 28663265364 in words is "twenty-eight billion, six hundred sixty-three million, two hundred sixty-five thousand, three hundred sixty-four".