117308889137 has 4 divisors (see below), whose sum is σ = 127973333616. Its totient is φ = 106644444660.

The previous prime is 117308889043. The next prime is 117308889149. The reversal of 117308889137 is 731988803711.

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, and also an emirpimes, since its reverse is a distinct semiprime: 731988803711 = 11 ⋅66544436701.

It is a cyclic number.

It is not a de Polignac number, because 117308889137 - 2¹² = 117308885041 is a prime.

It is a super-2 number, since 2×117308889137² (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 (117308889037) 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, 5332222223 + ... + 5332222244.

It is an arithmetic number, because the mean of its divisors is an integer number (31993333404).

Almost surely, 2^117308889137 is an apocalyptic number.

It is an amenable number.

117308889137 is a deficient number, since it is larger than the sum of its proper divisors (10664444479).

117308889137 is a wasteful number, since it uses less digits than its factorization.

117308889137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10664444478.

The product of its (nonzero) digits is 2032128, while the sum is 56.

The spelling of 117308889137 in words is "one hundred seventeen billion, three hundred eight million, eight hundred eighty-nine thousand, one hundred thirty-seven".