5138944680 has 64 divisors (see below), whose sum is σ = 15431408640. Its totient is φ = 1369089792.

The previous prime is 5138944669. The next prime is 5138944693. The reversal of 5138944680 is 864498315.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110742 + ... + 150138.

It is an arithmetic number, because the mean of its divisors is an integer number (241115760).

Almost surely, 2^5138944680 is an apocalyptic number.

It is an amenable number.

5138944680 is an abundant number, since it is smaller than the sum of its proper divisors (10292463960).

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

5138944680 is a wasteful number, since it uses less digits than its factorization.

5138944680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40498 (or 40494 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 48.

The square root of 5138944680 is about 71686.4330260615. The cubic root of 5138944680 is about 1725.6709207031.

It can be divided in two parts, 51389 and 44680, that added together give a palindrome (96069).

The spelling of 5138944680 in words is "five billion, one hundred thirty-eight million, nine hundred forty-four thousand, six hundred eighty".