28318207932 has 96 divisors (see below), whose sum is σ = 83945433600. Its totient is φ = 8087095296.

The previous prime is 28318207921. The next prime is 28318207933. The reversal of 28318207932 is 23970281382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28318207933) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1851388 + ... + 1866620.

It is an arithmetic number, because the mean of its divisors is an integer number (874431600).

Almost surely, 2^28318207932 is an apocalyptic number.

It is an amenable number.

28318207932 is an abundant number, since it is smaller than the sum of its proper divisors (55627225668).

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

28318207932 is a wasteful number, since it uses less digits than its factorization.

28318207932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17712 (or 17704 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 28318207932 in words is "twenty-eight billion, three hundred eighteen million, two hundred seven thousand, nine hundred thirty-two".