77988350927 has 16 divisors (see below), whose sum is σ = 78791774880. Its totient is φ = 77190019200.

The previous prime is 77988350887. The next prime is 77988350929. The reversal of 77988350927 is 72905388977.

It is a cyclic number.

It is not a de Polignac number, because 77988350927 - 2⁶ = 77988350863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77988350929) 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, 44794277 + ... + 44796017.

It is an arithmetic number, because the mean of its divisors is an integer number (4924485930).

Almost surely, 2^77988350927 is an apocalyptic number.

77988350927 is a deficient number, since it is larger than the sum of its proper divisors (803423953).

77988350927 is a wasteful number, since it uses less digits than its factorization.

77988350927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2954.

The product of its (nonzero) digits is 53343360, while the sum is 65.

The spelling of 77988350927 in words is "seventy-seven billion, nine hundred eighty-eight million, three hundred fifty thousand, nine hundred twenty-seven".