77939673204801 has 32 divisors (see below), whose sum is σ = 108794551357440. Its totient is φ = 49537247848704.

The previous prime is 77939673204787. The next prime is 77939673204829. The reversal of 77939673204801 is 10840237693977.

It is not a de Polignac number, because 77939673204801 - 2⁵ = 77939673204769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77939673200801) 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 31 ways as a sum of consecutive naturals, for example, 71988786 + ... + 73063428.

It is an arithmetic number, because the mean of its divisors is an integer number (3399829729920).

Almost surely, 2^{77939673204801} is an apocalyptic number.

It is an amenable number.

77939673204801 is a deficient number, since it is larger than the sum of its proper divisors (30854878152639).

77939673204801 is a wasteful number, since it uses less digits than its factorization.

77939673204801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078125.

The product of its (nonzero) digits is 96018048, while the sum is 66.

The spelling of 77939673204801 in words is "seventy-seven trillion, nine hundred thirty-nine billion, six hundred seventy-three million, two hundred four thousand, eight hundred one".