117906628644863 has 4 divisors (see below), whose sum is σ = 117912904632600. Its totient is φ = 117900352657128.

The previous prime is 117906628644859. The next prime is 117906628644899. The reversal of 117906628644863 is 368446826609711.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 117906628644863 - 2² = 117906628644859 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117906628644853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3137965688 + ... + 3138003261.

It is an arithmetic number, because the mean of its divisors is an integer number (29478226158150).

Almost surely, 2^{117906628644863} is an apocalyptic number.

117906628644863 is a deficient number, since it is larger than the sum of its proper divisors (6275987737).

117906628644863 is an equidigital number, since it uses as much as digits as its factorization.

117906628644863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6275987736.

The product of its (nonzero) digits is 501645312, while the sum is 71.

The spelling of 117906628644863 in words is "one hundred seventeen trillion, nine hundred six billion, six hundred twenty-eight million, six hundred forty-four thousand, eight hundred sixty-three".