77117477727722 has 16 divisors (see below), whose sum is σ = 119413245600000. Its totient is φ = 37313177905920.

The previous prime is 77117477727701. The next prime is 77117477727749. The reversal of 77117477727722 is 22772777471177.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27496472 + ... + 30171027.

It is an arithmetic number, because the mean of its divisors is an integer number (7463327850000).

Almost surely, 2^{77117477727722} is an apocalyptic number.

77117477727722 is a deficient number, since it is larger than the sum of its proper divisors (42295767872278).

77117477727722 is a wasteful number, since it uses less digits than its factorization.

77117477727722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57689101.

The product of its digits is 184473632, while the sum is 68.

The spelling of 77117477727722 in words is "seventy-seven trillion, one hundred seventeen billion, four hundred seventy-seven million, seven hundred twenty-seven thousand, seven hundred twenty-two".