77090612759 has 4 divisors (see below), whose sum is σ = 81625354704. Its totient is φ = 72555870816.

The previous prime is 77090612737. The next prime is 77090612761. The reversal of 77090612759 is 95721609077.

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 77090612759 - 2²⁸ = 76822177303 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 77090612759.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77090612719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2267370947 + ... + 2267370980.

It is an arithmetic number, because the mean of its divisors is an integer number (20406338676).

Almost surely, 2^77090612759 is an apocalyptic number.

77090612759 is a deficient number, since it is larger than the sum of its proper divisors (4534741945).

77090612759 is a wasteful number, since it uses less digits than its factorization.

77090612759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4534741944.

The product of its (nonzero) digits is 1666980, while the sum is 53.

The spelling of 77090612759 in words is "seventy-seven billion, ninety million, six hundred twelve thousand, seven hundred fifty-nine".