77807967059 has 4 divisors (see below), whose sum is σ = 81903123240. Its totient is φ = 73712810880.

The previous prime is 77807967049. The next prime is 77807967089. The reversal of 77807967059 is 95076970877.

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 77807967059 - 2⁴ = 77807967043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77807966986 and 77807967004.

It is not an unprimeable number, because it can be changed into a prime (77807967019) 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, 2047578062 + ... + 2047578099.

It is an arithmetic number, because the mean of its divisors is an integer number (20475780810).

Almost surely, 2^77807967059 is an apocalyptic number.

77807967059 is a deficient number, since it is larger than the sum of its proper divisors (4095156181).

77807967059 is a wasteful number, since it uses less digits than its factorization.

77807967059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4095156180.

The product of its (nonzero) digits is 46675440, while the sum is 65.

The spelling of 77807967059 in words is "seventy-seven billion, eight hundred seven million, nine hundred sixty-seven thousand, fifty-nine".