117127261157 has 4 divisors (see below), whose sum is σ = 120905559936. Its totient is φ = 113348962380.

The previous prime is 117127261151. The next prime is 117127261169. The reversal of 117127261157 is 751162721711.

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 117127261157 - 2⁶ = 117127261093 is a prime.

It is a super-2 number, since 2×117127261157² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117127261151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1889149343 + ... + 1889149404.

It is an arithmetic number, because the mean of its divisors is an integer number (30226389984).

Almost surely, 2^117127261157 is an apocalyptic number.

It is an amenable number.

117127261157 is a deficient number, since it is larger than the sum of its proper divisors (3778298779).

117127261157 is an equidigital number, since it uses as much as digits as its factorization.

117127261157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3778298778.

The product of its digits is 41160, while the sum is 41.

Adding to 117127261157 its reverse (751162721711), we get a palindrome (868289982868).

The spelling of 117127261157 in words is "one hundred seventeen billion, one hundred twenty-seven million, two hundred sixty-one thousand, one hundred fifty-seven".