77375643496793 has 2 divisors, whose sum is σ = 77375643496794. Its totient is φ = 77375643496792.

The previous prime is 77375643496741. The next prime is 77375643496829. The reversal of 77375643496793 is 39769434657377.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50653226283664 + 26722417213129 = 7117108^2 + 5169373^2 .

It is a cyclic number.

It is not a de Polignac number, because 77375643496793 - 2⁸ = 77375643496537 is a prime.

It is not a weakly prime, because it can be changed into another prime (77374643496793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38687821748396 + 38687821748397.

It is an arithmetic number, because the mean of its divisors is an integer number (38687821748397).

Almost surely, 2^{77375643496793} is an apocalyptic number.

It is an amenable number.

77375643496793 is a deficient number, since it is larger than the sum of its proper divisors (1).

77375643496793 is an equidigital number, since it uses as much as digits as its factorization.

77375643496793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15122842560, while the sum is 80.

The spelling of 77375643496793 in words is "seventy-seven trillion, three hundred seventy-five billion, six hundred forty-three million, four hundred ninety-six thousand, seven hundred ninety-three".