77268979859 has 8 divisors (see below), whose sum is σ = 79697928960. Its totient is φ = 74857957056.

The previous prime is 77268979829. The next prime is 77268979889. The reversal of 77268979859 is 95897986277.

It is an interprime number because it is at equal distance from previous prime (77268979829) and next prime (77268979889).

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

It is a cyclic number.

It is not a de Polignac number, because 77268979859 - 2⁸ = 77268979603 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77268979859.

It is not an unprimeable number, because it can be changed into a prime (77268979829) 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 7 ways as a sum of consecutive naturals, for example, 4472819 + ... + 4490060.

It is an arithmetic number, because the mean of its divisors is an integer number (9962241120).

Almost surely, 2^77268979859 is an apocalyptic number.

77268979859 is a deficient number, since it is larger than the sum of its proper divisors (2428949101).

77268979859 is a wasteful number, since it uses less digits than its factorization.

77268979859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8963149.

The product of its digits is 960180480, while the sum is 77.

The spelling of 77268979859 in words is "seventy-seven billion, two hundred sixty-eight million, nine hundred seventy-nine thousand, eight hundred fifty-nine".