78559070099 has 2 divisors, whose sum is σ = 78559070100. Its totient is φ = 78559070098.

The previous prime is 78559070087. The next prime is 78559070101. The reversal of 78559070099 is 99007095587.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78559070099 - 2³⁶ = 9839593363 is a prime.

It is a Sophie Germain prime.

Together with 78559070101, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (78559070299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39279535049 + 39279535050.

It is an arithmetic number, because the mean of its divisors is an integer number (39279535050).

Almost surely, 2^78559070099 is an apocalyptic number.

78559070099 is a deficient number, since it is larger than the sum of its proper divisors (1).

78559070099 is an equidigital number, since it uses as much as digits as its factorization.

78559070099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7144200, while the sum is 59.

The spelling of 78559070099 in words is "seventy-eight billion, five hundred fifty-nine million, seventy thousand, ninety-nine".