77232676481 has 2 divisors, whose sum is σ = 77232676482. Its totient is φ = 77232676480.

The previous prime is 77232676459. The next prime is 77232676601. The reversal of 77232676481 is 18467623277.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74630044225 + 2602632256 = 273185^2 + 51016^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77232676481 is a prime.

It is a super-2 number, since 2×77232676481² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (77232676441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38616338240 + 38616338241.

It is an arithmetic number, because the mean of its divisors is an integer number (38616338241).

Almost surely, 2^77232676481 is an apocalyptic number.

It is an amenable number.

77232676481 is a deficient number, since it is larger than the sum of its proper divisors (1).

77232676481 is an equidigital number, since it uses as much as digits as its factorization.

77232676481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4741632, while the sum is 53.

The spelling of 77232676481 in words is "seventy-seven billion, two hundred thirty-two million, six hundred seventy-six thousand, four hundred eighty-one".