117771104451 has 64 divisors (see below), whose sum is σ = 216533431296. Its totient is φ = 54947289600.

The previous prime is 117771104387. The next prime is 117771104461. The reversal of 117771104451 is 154401177711.

It is not a de Polignac number, because 117771104451 - 2⁶ = 117771104387 is a prime.

It is a super-2 number, since 2×117771104451² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (117771104461) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 418860 + ... + 641081.

It is an arithmetic number, because the mean of its divisors is an integer number (3383334864).

Almost surely, 2^117771104451 is an apocalyptic number.

117771104451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

117771104451 is a deficient number, since it is larger than the sum of its proper divisors (98762326845).

117771104451 is a wasteful number, since it uses less digits than its factorization.

117771104451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060012.

The product of its (nonzero) digits is 27440, while the sum is 39.

It can be divided in two parts, 117771 and 104451, that added together give a palindrome (222222).

The spelling of 117771104451 in words is "one hundred seventeen billion, seven hundred seventy-one million, one hundred four thousand, four hundred fifty-one".