117890777849147 has 2 divisors, whose sum is σ = 117890777849148. Its totient is φ = 117890777849146.

The previous prime is 117890777849129. The next prime is 117890777849177. The reversal of 117890777849147 is 741948777098711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117890777849147 - 2¹² = 117890777845051 is a prime.

It is not a weakly prime, because it can be changed into another prime (117890777849177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58945388924573 + 58945388924574.

It is an arithmetic number, because the mean of its divisors is an integer number (58945388924574).

Almost surely, 2^{117890777849147} is an apocalyptic number.

117890777849147 is a deficient number, since it is larger than the sum of its proper divisors (1).

117890777849147 is an equidigital number, since it uses as much as digits as its factorization.

117890777849147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1394039808, while the sum is 80.

The spelling of 117890777849147 in words is "one hundred seventeen trillion, eight hundred ninety billion, seven hundred seventy-seven million, eight hundred forty-nine thousand, one hundred forty-seven".