5115138020 has 24 divisors (see below), whose sum is σ = 10743272568. Its totient is φ = 2045772800.

The previous prime is 5115137977. The next prime is 5115138047. The reversal of 5115138020 is 208315115.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 594189376 + 4520948644 = 24376^2 + 67238^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191060 + ... + 216180.

It is an arithmetic number, because the mean of its divisors is an integer number (447636357).

Almost surely, 2^5115138020 is an apocalyptic number.

It is an amenable number.

5115138020 is an abundant number, since it is smaller than the sum of its proper divisors (5628134548).

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

5115138020 is a wasteful number, since it uses less digits than its factorization.

5115138020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35311 (or 35309 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 5115138020 is about 71520.1930925805. The cubic root of 5115138020 is about 1723.0020157873.

The spelling of 5115138020 in words is "five billion, one hundred fifteen million, one hundred thirty-eight thousand, twenty".