117812580827 has 2 divisors, whose sum is σ = 117812580828. Its totient is φ = 117812580826.

The previous prime is 117812580811. The next prime is 117812580841. The reversal of 117812580827 is 728085218711.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117812580827 - 2⁴ = 117812580811 is a prime.

It is a super-2 number, since 2×117812580827² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (117812580887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58906290413 + 58906290414.

It is an arithmetic number, because the mean of its divisors is an integer number (58906290414).

Almost surely, 2^117812580827 is an apocalyptic number.

117812580827 is a deficient number, since it is larger than the sum of its proper divisors (1).

117812580827 is an equidigital number, since it uses as much as digits as its factorization.

117812580827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 501760, while the sum is 50.

The spelling of 117812580827 in words is "one hundred seventeen billion, eight hundred twelve million, five hundred eighty thousand, eight hundred twenty-seven".