117808621807 has 2 divisors, whose sum is σ = 117808621808. Its totient is φ = 117808621806.

The previous prime is 117808621753. The next prime is 117808621841. The reversal of 117808621807 is 708126808711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117808621807 - 2¹¹ = 117808619759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117808621897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58904310903 + 58904310904.

It is an arithmetic number, because the mean of its divisors is an integer number (58904310904).

Almost surely, 2^117808621807 is an apocalyptic number.

117808621807 is a deficient number, since it is larger than the sum of its proper divisors (1).

117808621807 is an equidigital number, since it uses as much as digits as its factorization.

117808621807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 301056, while the sum is 49.

The spelling of 117808621807 in words is "one hundred seventeen billion, eight hundred eight million, six hundred twenty-one thousand, eight hundred seven".