77925630941 has 2 divisors, whose sum is σ = 77925630942. Its totient is φ = 77925630940.

The previous prime is 77925630883. The next prime is 77925630949. The reversal of 77925630941 is 14903652977.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69460710916 + 8464920025 = 263554^2 + 92005^2 .

It is a cyclic number.

It is not a de Polignac number, because 77925630941 - 2⁶ = 77925630877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77925630949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38962815470 + 38962815471.

It is an arithmetic number, because the mean of its divisors is an integer number (38962815471).

Almost surely, 2^77925630941 is an apocalyptic number.

It is an amenable number.

77925630941 is a deficient number, since it is larger than the sum of its proper divisors (1).

77925630941 is an equidigital number, since it uses as much as digits as its factorization.

77925630941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2857680, while the sum is 53.

The spelling of 77925630941 in words is "seventy-seven billion, nine hundred twenty-five million, six hundred thirty thousand, nine hundred forty-one".