77399567088 has 20 divisors (see below), whose sum is σ = 199948881768. Its totient is φ = 25799855680.

The previous prime is 77399567083. The next prime is 77399567111. The reversal of 77399567088 is 88076599377.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77399567083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 806245443 + ... + 806245538.

Almost surely, 2^77399567088 is an apocalyptic number.

It is an amenable number.

77399567088 is an abundant number, since it is smaller than the sum of its proper divisors (122549314680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77399567088 is a wasteful number, since it uses less digits than its factorization.

77399567088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1612490992 (or 1612490986 counting only the distinct ones).

The product of its (nonzero) digits is 160030080, while the sum is 69.

The spelling of 77399567088 in words is "seventy-seven billion, three hundred ninety-nine million, five hundred sixty-seven thousand, eighty-eight".