5131928808 has 48 divisors (see below), whose sum is σ = 13903589700. Its totient is φ = 1710074880.

The previous prime is 5131928773. The next prime is 5131928819. The reversal of 5131928808 is 8088291315.

It is a happy number.

5131928808 is a `hidden beast` number, since 51 + 319 + 288 + 0 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4950811044 + 181117764 = 70362^2 + 13458^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 244888 + ... + 265016.

Almost surely, 2^5131928808 is an apocalyptic number.

It is an amenable number.

5131928808 is an abundant number, since it is smaller than the sum of its proper divisors (8771660892).

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

5131928808 is a wasteful number, since it uses less digits than its factorization.

5131928808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23682 (or 23675 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The square root of 5131928808 is about 71637.4818652917. The cubic root of 5131928808 is about 1724.8852470608.

It can be divided in two parts, 513 and 1928808, that added together give a square (1929321 = 1389²).

The spelling of 5131928808 in words is "five billion, one hundred thirty-one million, nine hundred twenty-eight thousand, eight hundred eight".