77636622663677 has 8 divisors (see below), whose sum is σ = 96793711372992. Its totient is φ = 60496069608000.

The previous prime is 77636622663671. The next prime is 77636622663701.

77636622663677 is nontrivially palindromic in base 10.

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 77636622663677 - 2²⁰ = 77636621615101 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 (77636622663671) 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, 504133913324 + ... + 504133913477.

It is an arithmetic number, because the mean of its divisors is an integer number (12099213921624).

Almost surely, 2^{77636622663677} is an apocalyptic number.

77636622663677 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

It is an amenable number.

77636622663677 is a deficient number, since it is larger than the sum of its proper divisors (19157088709315).

77636622663677 is a wasteful number, since it uses less digits than its factorization.

77636622663677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008267826819.

The product of its digits is 4032758016, while the sum is 74.

The spelling of 77636622663677 in words is "seventy-seven trillion, six hundred thirty-six billion, six hundred twenty-two million, six hundred sixty-three thousand, six hundred seventy-seven".