28336656372 has 24 divisors (see below), whose sum is σ = 66127857600. Its totient is φ = 9444267456.

The previous prime is 28336656347. The next prime is 28336656379. The reversal of 28336656372 is 27365663382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28336656379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66472 + ... + 247167.

It is an arithmetic number, because the mean of its divisors is an integer number (2755327400).

Almost surely, 2^28336656372 is an apocalyptic number.

It is an amenable number.

28336656372 is an abundant number, since it is smaller than the sum of its proper divisors (37791201228).

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

28336656372 is a wasteful number, since it uses less digits than its factorization.

28336656372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321175 (or 321173 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 51.

The spelling of 28336656372 in words is "twenty-eight billion, three hundred thirty-six million, six hundred fifty-six thousand, three hundred seventy-two".