779000005791 has 24 divisors (see below), whose sum is σ = 1286071723040. Its totient is φ = 445107047616.

The previous prime is 779000005759. The next prime is 779000005799. The reversal of 779000005791 is 197500000977.

779000005791 is a `hidden beast` number, since 7 + 79 + 0 + 0 + 0 + 0 + 0 + 579 + 1 = 666.

It is not a de Polignac number, because 779000005791 - 2⁵ = 779000005759 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 (779000005799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 302001 + ... + 1284213.

Almost surely, 2^779000005791 is an apocalyptic number.

779000005791 is a deficient number, since it is larger than the sum of its proper divisors (507071717249).

779000005791 is a wasteful number, since it uses less digits than its factorization.

779000005791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994815 (or 994812 counting only the distinct ones).

The product of its (nonzero) digits is 138915, while the sum is 45.

The spelling of 779000005791 in words is "seven hundred seventy-nine billion, five thousand, seven hundred ninety-one".