77108467666679 has 8 divisors (see below), whose sum is σ = 81645255337680. Its totient is φ = 72571790601856.

The previous prime is 77108467666663. The next prime is 77108467666687. The reversal of 77108467666679 is 97666676480177.

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 77108467666679 - 2⁴ = 77108467666663 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 (77108467666619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26214104 + ... + 29006829.

It is an arithmetic number, because the mean of its divisors is an integer number (10205656917210).

Almost surely, 2^{77108467666679} is an apocalyptic number.

77108467666679 is a deficient number, since it is larger than the sum of its proper divisors (4536787671001).

77108467666679 is a wasteful number, since it uses less digits than its factorization.

77108467666679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55303089.

The product of its (nonzero) digits is 5377010688, while the sum is 80.

The spelling of 77108467666679 in words is "seventy-seven trillion, one hundred eight billion, four hundred sixty-seven million, six hundred sixty-six thousand, six hundred seventy-nine".