28232557832 has 96 divisors (see below), whose sum is σ = 58178797560. Its totient is φ = 12799180800.

The previous prime is 28232557831. The next prime is 28232557861. The reversal of 28232557832 is 23875523282.

It can be written as a sum of positive squares in 4 ways, for example, as 27753560836 + 478996996 = 166594^2 + 21886^2 .

It is not an unprimeable number, because it can be changed into a prime (28232557831) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44044232 + ... + 44044872.

Almost surely, 2^28232557832 is an apocalyptic number.

It is an amenable number.

28232557832 is an abundant number, since it is smaller than the sum of its proper divisors (29946239728).

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

28232557832 is a wasteful number, since it uses less digits than its factorization.

28232557832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063 (or 1028 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 47.

The spelling of 28232557832 in words is "twenty-eight billion, two hundred thirty-two million, five hundred fifty-seven thousand, eight hundred thirty-two".