5121979513 has 8 divisors (see below), whose sum is σ = 5854557632. Its totient is φ = 4389618096.

The previous prime is 5121979439. The next prime is 5121979531. The reversal of 5121979513 is 3159791215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5121979513 - 2¹³ = 5121971321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5121979513.

It is not an unprimeable number, because it can be changed into a prime (5121979553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106 + ... + 101212.

It is an arithmetic number, because the mean of its divisors is an integer number (731819704).

Almost surely, 2^5121979513 is an apocalyptic number.

It is an amenable number.

5121979513 is a deficient number, since it is larger than the sum of its proper divisors (732578119).

5121979513 is a wasteful number, since it uses less digits than its factorization.

5121979513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108351.

The product of its digits is 85050, while the sum is 43.

The square root of 5121979513 is about 71568.0062108761. The cubic root of 5121979513 is about 1723.7698448369.

The spelling of 5121979513 in words is "five billion, one hundred twenty-one million, nine hundred seventy-nine thousand, five hundred thirteen".