117627251271 has 4 divisors (see below), whose sum is σ = 156836335032. Its totient is φ = 78418167512.

The previous prime is 117627251201. The next prime is 117627251293. The reversal of 117627251271 is 172152726711.

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 117627251271 - 2¹⁷ = 117627120199 is a prime.

It is a super-2 number, since 2×117627251271² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117627251201) 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, 19604541876 + ... + 19604541881.

It is an arithmetic number, because the mean of its divisors is an integer number (39209083758).

Almost surely, 2^117627251271 is an apocalyptic number.

117627251271 is a deficient number, since it is larger than the sum of its proper divisors (39209083761).

117627251271 is an equidigital number, since it uses as much as digits as its factorization.

117627251271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39209083760.

The product of its digits is 82320, while the sum is 42.

Adding to 117627251271 its reverse (172152726711), we get a palindrome (289779977982).

The spelling of 117627251271 in words is "one hundred seventeen billion, six hundred twenty-seven million, two hundred fifty-one thousand, two hundred seventy-one".