551179520639 has 8 divisors (see below), whose sum is σ = 604338969168. Its totient is φ = 498528775360.

The previous prime is 551179520629. The next prime is 551179520713. The reversal of 551179520639 is 936025971155.

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

It is not a de Polignac number, because 551179520639 - 2⁴ = 551179520623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551179520629) 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, 127173542 + ... + 127177875.

It is an arithmetic number, because the mean of its divisors is an integer number (75542371146).

Almost surely, 2^551179520639 is an apocalyptic number.

551179520639 is a deficient number, since it is larger than the sum of its proper divisors (53159448529).

551179520639 is a wasteful number, since it uses less digits than its factorization.

551179520639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254351625.

The product of its (nonzero) digits is 2551500, while the sum is 53.

The spelling of 551179520639 in words is "five hundred fifty-one billion, one hundred seventy-nine million, five hundred twenty thousand, six hundred thirty-nine".