5121871517 has 8 divisors (see below), whose sum is σ = 5859482112. Its totient is φ = 4385739600.

The previous prime is 5121871501. The next prime is 5121871621. The reversal of 5121871517 is 7151781215.

5121871517 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 5121871517 - 2⁴ = 5121871501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5121879517) 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, 362234 + ... + 376107.

It is an arithmetic number, because the mean of its divisors is an integer number (732435264).

Almost surely, 2^5121871517 is an apocalyptic number.

It is an amenable number.

5121871517 is a deficient number, since it is larger than the sum of its proper divisors (737610595).

5121871517 is an equidigital number, since it uses as much as digits as its factorization.

5121871517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739339.

The product of its digits is 19600, while the sum is 38.

The square root of 5121871517 is about 71567.2517077469. The cubic root of 5121871517 is about 1723.7577296279.

The spelling of 5121871517 in words is "five billion, one hundred twenty-one million, eight hundred seventy-one thousand, five hundred seventeen".