77516112121963 has 2 divisors, whose sum is σ = 77516112121964. Its totient is φ = 77516112121962.

The previous prime is 77516112121949. The next prime is 77516112121969. The reversal of 77516112121963 is 36912121161577.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77516112121963 - 2³⁷ = 77378673168491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77516112121963.

It is not a weakly prime, because it can be changed into another prime (77516112121969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38758056060981 + 38758056060982.

It is an arithmetic number, because the mean of its divisors is an integer number (38758056060982).

Almost surely, 2^{77516112121963} is an apocalyptic number.

77516112121963 is a deficient number, since it is larger than the sum of its proper divisors (1).

77516112121963 is an equidigital number, since it uses as much as digits as its factorization.

77516112121963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 952560, while the sum is 52.

The spelling of 77516112121963 in words is "seventy-seven trillion, five hundred sixteen billion, one hundred twelve million, one hundred twenty-one thousand, nine hundred sixty-three".