77093808907 has 2 divisors, whose sum is σ = 77093808908. Its totient is φ = 77093808906.

The previous prime is 77093808811. The next prime is 77093808917. The reversal of 77093808907 is 70980839077.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77093808907 - 2²⁷ = 76959591179 is a prime.

It is not a weakly prime, because it can be changed into another prime (77093808917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38546904453 + 38546904454.

It is an arithmetic number, because the mean of its divisors is an integer number (38546904454).

Almost surely, 2^77093808907 is an apocalyptic number.

77093808907 is a deficient number, since it is larger than the sum of its proper divisors (1).

77093808907 is an equidigital number, since it uses as much as digits as its factorization.

77093808907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5334336, while the sum is 58.

The spelling of 77093808907 in words is "seventy-seven billion, ninety-three million, eight hundred eight thousand, nine hundred seven".