76377988977365 has 4 divisors (see below), whose sum is σ = 91653586772844. Its totient is φ = 61102391181888.

The previous prime is 76377988977313. The next prime is 76377988977469. The reversal of 76377988977365 is 56377988977367.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49589890756081 + 26788098221284 = 7042009^2 + 5175722^2 .

It is a cyclic number.

It is not a de Polignac number, because 76377988977365 - 2⁸ = 76377988977109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7637798897732 + ... + 7637798897741.

It is an arithmetic number, because the mean of its divisors is an integer number (22913396693211).

Almost surely, 2^{76377988977365} is an apocalyptic number.

It is an amenable number.

76377988977365 is a deficient number, since it is larger than the sum of its proper divisors (15275597795479).

76377988977365 is a wasteful number, since it uses less digits than its factorization.

76377988977365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15275597795478.

The product of its digits is 141146530560, while the sum is 92.

The spelling of 76377988977365 in words is "seventy-six trillion, three hundred seventy-seven billion, nine hundred eighty-eight million, nine hundred seventy-seven thousand, three hundred sixty-five".