77996885983 has 2 divisors, whose sum is σ = 77996885984. Its totient is φ = 77996885982.

The previous prime is 77996885969. The next prime is 77996885987. The reversal of 77996885983 is 38958869977.

It is a strong prime.

It is an emirp because it is prime and its reverse (38958869977) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77996885983 - 2⁵ = 77996885951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77996885987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38998442991 + 38998442992.

It is an arithmetic number, because the mean of its divisors is an integer number (38998442992).

Almost surely, 2^77996885983 is an apocalyptic number.

77996885983 is a deficient number, since it is larger than the sum of its proper divisors (1).

77996885983 is an equidigital number, since it uses as much as digits as its factorization.

77996885983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1646023680, while the sum is 79.

The spelling of 77996885983 in words is "seventy-seven billion, nine hundred ninety-six million, eight hundred eighty-five thousand, nine hundred eighty-three".