779116345431 has 8 divisors (see below), whose sum is σ = 1039197237504. Its totient is φ = 519223175160.

The previous prime is 779116345409. The next prime is 779116345451. The reversal of 779116345431 is 134543611977.

It is a happy number.

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

It is not a de Polignac number, because 779116345431 - 2⁶ = 779116345367 is a prime.

It is a super-2 number, since 2×779116345431² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (779116345451) 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, 46920765 + ... + 46937366.

It is an arithmetic number, because the mean of its divisors is an integer number (129899654688).

Almost surely, 2^779116345431 is an apocalyptic number.

779116345431 is a deficient number, since it is larger than the sum of its proper divisors (260080892073).

779116345431 is a wasteful number, since it uses less digits than its factorization.

779116345431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93860901.

The product of its digits is 1905120, while the sum is 51.

The spelling of 779116345431 in words is "seven hundred seventy-nine billion, one hundred sixteen million, three hundred forty-five thousand, four hundred thirty-one".