117407212257 has 16 divisors (see below), whose sum is σ = 157635274752. Its totient is φ = 77725678800.

The previous prime is 117407212253. The next prime is 117407212261. The reversal of 117407212257 is 752212704711.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (117407212253) and next prime (117407212261).

It is not a de Polignac number, because 117407212257 - 2² = 117407212253 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117407212253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1281658 + ... + 1370204.

It is an arithmetic number, because the mean of its divisors is an integer number (9852204672).

Almost surely, 2^117407212257 is an apocalyptic number.

It is an amenable number.

117407212257 is a deficient number, since it is larger than the sum of its proper divisors (40228062495).

117407212257 is a wasteful number, since it uses less digits than its factorization.

117407212257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91628.

The product of its (nonzero) digits is 54880, while the sum is 39.

Adding to 117407212257 its reverse (752212704711), we get a palindrome (869619916968).

The spelling of 117407212257 in words is "one hundred seventeen billion, four hundred seven million, two hundred twelve thousand, two hundred fifty-seven".