77422488717 has 16 divisors (see below), whose sum is σ = 117981021312. Its totient is φ = 44239961280.

The previous prime is 77422488691. The next prime is 77422488733. The reversal of 77422488717 is 71788422477.

It is a happy number.

It is not a de Polignac number, because 77422488717 - 2⁶ = 77422488653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77422488317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1155967 + ... + 1221107.

It is an arithmetic number, because the mean of its divisors is an integer number (7373813832).

Almost surely, 2^77422488717 is an apocalyptic number.

It is an amenable number.

77422488717 is a deficient number, since it is larger than the sum of its proper divisors (40558532595).

77422488717 is a wasteful number, since it uses less digits than its factorization.

77422488717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121748.

The product of its digits is 9834496, while the sum is 57.

The spelling of 77422488717 in words is "seventy-seven billion, four hundred twenty-two million, four hundred eighty-eight thousand, seven hundred seventeen".