28486312452 has 72 divisors (see below), whose sum is σ = 80917671744. Its totient is φ = 8383928256.

The previous prime is 28486312451. The next prime is 28486312489. The reversal of 28486312452 is 25421368482.

28486312452 is a `hidden beast` number, since 2 + 8 + 4 + 8 + 631 + 2 + 4 + 5 + 2 = 666.

It is a super-2 number, since 2×28486312452² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28486312398 and 28486312407.

It is not an unprimeable number, because it can be changed into a prime (28486312451) 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, 1312458 + ... + 1333985.

It is an arithmetic number, because the mean of its divisors is an integer number (1123856552).

Almost surely, 2^28486312452 is an apocalyptic number.

It is an amenable number.

28486312452 is an abundant number, since it is smaller than the sum of its proper divisors (52431359292).

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

28486312452 is a wasteful number, since it uses less digits than its factorization.

28486312452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2646489 (or 2646484 counting only the distinct ones).

The product of its digits is 737280, while the sum is 45.

The spelling of 28486312452 in words is "twenty-eight billion, four hundred eighty-six million, three hundred twelve thousand, four hundred fifty-two".