76945597691 has 2 divisors, whose sum is σ = 76945597692. Its totient is φ = 76945597690.

The previous prime is 76945597679. The next prime is 76945597711. The reversal of 76945597691 is 19679554967.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 76945597691 - 2²² = 76941403387 is a prime.

It is not a weakly prime, because it can be changed into another prime (76945597621) 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, 38472798845 + 38472798846.

It is an arithmetic number, because the mean of its divisors is an integer number (38472798846).

Almost surely, 2^76945597691 is an apocalyptic number.

76945597691 is a deficient number, since it is larger than the sum of its proper divisors (1).

76945597691 is an equidigital number, since it uses as much as digits as its factorization.

76945597691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 128595600, while the sum is 68.

The spelling of 76945597691 in words is "seventy-six billion, nine hundred forty-five million, five hundred ninety-seven thousand, six hundred ninety-one".