28477628732 has 12 divisors (see below), whose sum is σ = 56955257520. Its totient is φ = 12204698016.

The previous prime is 28477628731. The next prime is 28477628737. The reversal of 28477628732 is 23782677482.

28477628732 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28477628731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 508529057 + ... + 508529112.

It is an arithmetic number, because the mean of its divisors is an integer number (4746271460).

Almost surely, 2^28477628732 is an apocalyptic number.

It is an amenable number.

28477628732 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28477628732 is a wasteful number, since it uses less digits than its factorization.

28477628732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017058180 (or 1017058178 counting only the distinct ones).

The product of its digits is 12644352, while the sum is 56.

The spelling of 28477628732 in words is "twenty-eight billion, four hundred seventy-seven million, six hundred twenty-eight thousand, seven hundred thirty-two".