772180516879 has 4 divisors (see below), whose sum is σ = 772808817960. Its totient is φ = 771552215800.

The previous prime is 772180516867. The next prime is 772180516883. The reversal of 772180516879 is 978615081277.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 772180516879 - 2³⁹ = 222424702991 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 (772180516859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314148697 + ... + 314151154.

It is an arithmetic number, because the mean of its divisors is an integer number (193202204490).

Almost surely, 2^772180516879 is an apocalyptic number.

772180516879 is a deficient number, since it is larger than the sum of its proper divisors (628301081).

772180516879 is a wasteful number, since it uses less digits than its factorization.

772180516879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628301080.

The product of its (nonzero) digits is 11854080, while the sum is 61.

The spelling of 772180516879 in words is "seven hundred seventy-two billion, one hundred eighty million, five hundred sixteen thousand, eight hundred seventy-nine".