5117357257561 has 8 divisors (see below), whose sum is σ = 5349945300480. Its totient is φ = 4894863452116.

The previous prime is 5117357257553. The next prime is 5117357257651. The reversal of 5117357257561 is 1657527537115.

It is not a de Polignac number, because 5117357257561 - 2³ = 5117357257553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5117357257541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210284425 + ... + 210308758.

It is an arithmetic number, because the mean of its divisors is an integer number (668743162560).

Almost surely, 2^{5117357257561} is an apocalyptic number.

It is an amenable number.

5117357257561 is a deficient number, since it is larger than the sum of its proper divisors (232588042919).

5117357257561 is an frugal number, since it uses more digits than its factorization.

5117357257561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420593252 (or 420593206 counting only the distinct ones).

The product of its digits is 7717500, while the sum is 55.

The spelling of 5117357257561 in words is "five trillion, one hundred seventeen billion, three hundred fifty-seven million, two hundred fifty-seven thousand, five hundred sixty-one".