117105297893 has 4 divisors (see below), whose sum is σ = 122196832608. Its totient is φ = 112013763180.

The previous prime is 117105297877. The next prime is 117105297917. The reversal of 117105297893 is 398792501711.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 117105297893 - 2⁴ = 117105297877 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 (117105297833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2545767323 + ... + 2545767368.

It is an arithmetic number, because the mean of its divisors is an integer number (30549208152).

Almost surely, 2^117105297893 is an apocalyptic number.

It is an amenable number.

117105297893 is a deficient number, since it is larger than the sum of its proper divisors (5091534715).

117105297893 is an equidigital number, since it uses as much as digits as its factorization.

117105297893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5091534714.

The product of its (nonzero) digits is 952560, while the sum is 53.

The spelling of 117105297893 in words is "one hundred seventeen billion, one hundred five million, two hundred ninety-seven thousand, eight hundred ninety-three".