117290111779 has 4 divisors (see below), whose sum is σ = 117294294960. Its totient is φ = 117285928600.

The previous prime is 117290111767. The next prime is 117290111803. The reversal of 117290111779 is 977111092711.

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 117290111779 - 2²³ = 117281723171 is a prime.

It is a super-2 number, since 2×117290111779² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117290121779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2049247 + ... + 2105704.

It is an arithmetic number, because the mean of its divisors is an integer number (29323573740).

Almost surely, 2^117290111779 is an apocalyptic number.

117290111779 is a deficient number, since it is larger than the sum of its proper divisors (4183181).

117290111779 is an equidigital number, since it uses as much as digits as its factorization.

117290111779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4183180.

The product of its (nonzero) digits is 55566, while the sum is 46.

The spelling of 117290111779 in words is "one hundred seventeen billion, two hundred ninety million, one hundred eleven thousand, seven hundred seventy-nine".