775046774879 has 24 divisors (see below), whose sum is σ = 841972400640. Its totient is φ = 713112255648.

The previous prime is 775046774833. The next prime is 775046774923. The reversal of 775046774879 is 978477640577.

It is not a de Polignac number, because 775046774879 - 2²⁴ = 775029997663 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 (775046774819) 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 23 ways as a sum of consecutive naturals, for example, 75631334 + ... + 75641580.

It is an arithmetic number, because the mean of its divisors is an integer number (35082183360).

Almost surely, 2^775046774879 is an apocalyptic number.

775046774879 is a deficient number, since it is larger than the sum of its proper divisors (66925625761).

775046774879 is a wasteful number, since it uses less digits than its factorization.

775046774879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11679 (or 11666 counting only the distinct ones).

The product of its (nonzero) digits is 580849920, while the sum is 71.

The spelling of 775046774879 in words is "seven hundred seventy-five billion, forty-six million, seven hundred seventy-four thousand, eight hundred seventy-nine".