5135638816 has 72 divisors (see below), whose sum is σ = 12701223360. Its totient is φ = 2000887680.

The previous prime is 5135638793. The next prime is 5135638819. The reversal of 5135638816 is 6188365315.

It is not an unprimeable number, because it can be changed into a prime (5135638819) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67636 + ... + 121843.

It is an arithmetic number, because the mean of its divisors is an integer number (176405880).

Almost surely, 2^5135638816 is an apocalyptic number.

5135638816 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

5135638816 is an abundant number, since it is smaller than the sum of its proper divisors (7565584544).

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

5135638816 is a wasteful number, since it uses less digits than its factorization.

5135638816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189518 (or 189499 counting only the distinct ones).

The product of its digits is 518400, while the sum is 46.

The square root of 5135638816 is about 71663.3715087422. The cubic root of 5135638816 is about 1725.3008020980.

The spelling of 5135638816 in words is "five billion, one hundred thirty-five million, six hundred thirty-eight thousand, eight hundred sixteen".