76704961121 has 2 divisors, whose sum is σ = 76704961122. Its totient is φ = 76704961120.

The previous prime is 76704961063. The next prime is 76704961139. The reversal of 76704961121 is 12116940767.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75889230400 + 815730721 = 275480^2 + 28561^2 .

It is a cyclic number.

It is not a de Polignac number, because 76704961121 - 2¹⁸ = 76704698977 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (76704961181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38352480560 + 38352480561.

It is an arithmetic number, because the mean of its divisors is an integer number (38352480561).

Almost surely, 2^76704961121 is an apocalyptic number.

It is an amenable number.

76704961121 is a deficient number, since it is larger than the sum of its proper divisors (1).

76704961121 is an equidigital number, since it uses as much as digits as its factorization.

76704961121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 44.

The spelling of 76704961121 in words is "seventy-six billion, seven hundred four million, nine hundred sixty-one thousand, one hundred twenty-one".