779914657913 has 8 divisors (see below), whose sum is σ = 793387865760. Its totient is φ = 766449927360.

The previous prime is 779914657831. The next prime is 779914657927. The reversal of 779914657913 is 319756419977.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-779914657913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (779914657933) 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, 1933595 + ... + 2301872.

It is an arithmetic number, because the mean of its divisors is an integer number (99173483220).

Almost surely, 2^779914657913 is an apocalyptic number.

It is an amenable number.

779914657913 is a deficient number, since it is larger than the sum of its proper divisors (13473207847).

779914657913 is a wasteful number, since it uses less digits than its factorization.

779914657913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4238647.

The product of its digits is 90016920, while the sum is 68.

The spelling of 779914657913 in words is "seven hundred seventy-nine billion, nine hundred fourteen million, six hundred fifty-seven thousand, nine hundred thirteen".