5131220928 has 56 divisors (see below), whose sum is σ = 13581839232. Its totient is φ = 1709716224.

The previous prime is 5131220869. The next prime is 5131220933. The reversal of 5131220928 is 8290221315.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 735151 + ... + 742097.

Almost surely, 2^5131220928 is an apocalyptic number.

It is an amenable number.

5131220928 is an abundant number, since it is smaller than the sum of its proper divisors (8450618304).

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

5131220928 is a wasteful number, since it uses less digits than its factorization.

5131220928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10809 (or 10799 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 5131220928 is about 71632.5409852254. The cubic root of 5131220928 is about 1724.8059352361.

The spelling of 5131220928 in words is "five billion, one hundred thirty-one million, two hundred twenty thousand, nine hundred twenty-eight".