77422321024 has 16 divisors (see below), whose sum is σ = 154239780420. Its totient is φ = 38711160448.

The previous prime is 77422320973. The next prime is 77422321027. The reversal of 77422321024 is 42012322477.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77422321027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302430814 + ... + 302431069.

Almost surely, 2^77422321024 is an apocalyptic number.

It is an amenable number.

77422321024 is a deficient number, since it is larger than the sum of its proper divisors (76817459396).

77422321024 is an equidigital number, since it uses as much as digits as its factorization.

77422321024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604861897 (or 604861885 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 34.

The spelling of 77422321024 in words is "seventy-seven billion, four hundred twenty-two million, three hundred twenty-one thousand, twenty-four".