28632031488 has 54 divisors (see below), whose sum is σ = 82553212014. Its totient is φ = 9544009728.

The previous prime is 28632031487. The next prime is 28632031501. The reversal of 28632031488 is 88413023682.

28632031488 is a `hidden beast` number, since 2 + 8 + 6 + 320 + 314 + 8 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 14677807104 + 13954224384 = 121152^2 + 118128^2 .

It is not an unprimeable number, because it can be changed into a prime (28632031487) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6211245 + ... + 6215852.

Almost surely, 2^28632031488 is an apocalyptic number.

It is an amenable number.

28632031488 is an abundant number, since it is smaller than the sum of its proper divisors (53921180526).

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

28632031488 is a wasteful number, since it uses less digits than its factorization.

28632031488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12427119 (or 12427102 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The spelling of 28632031488 in words is "twenty-eight billion, six hundred thirty-two million, thirty-one thousand, four hundred eighty-eight".