77924942722 has 16 divisors (see below), whose sum is σ = 128075284512. Its totient is φ = 35264389120.

The previous prime is 77924942677. The next prime is 77924942723. The reversal of 77924942722 is 22724942977.

It is not an unprimeable number, because it can be changed into a prime (77924942723) 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, 7796863 + ... + 7806850.

It is an arithmetic number, because the mean of its divisors is an integer number (8004705282).

Almost surely, 2^77924942722 is an apocalyptic number.

77924942722 is a deficient number, since it is larger than the sum of its proper divisors (50150341790).

77924942722 is a wasteful number, since it uses less digits than its factorization.

77924942722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15603953.

The product of its digits is 7112448, while the sum is 55.

The spelling of 77924942722 in words is "seventy-seven billion, nine hundred twenty-four million, nine hundred forty-two thousand, seven hundred twenty-two".