117756142637305 has 4 divisors (see below), whose sum is σ = 141307371164772. Its totient is φ = 94204914109840.

The previous prime is 117756142637303. The next prime is 117756142637311. The reversal of 117756142637305 is 503736241657711.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52949649775801 + 64806492861504 = 7276651^2 + 8050248^2 .

It is not a de Polignac number, because 117756142637305 - 2¹ = 117756142637303 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117756142637305.

It is not an unprimeable number, because it can be changed into a prime (117756142637303) 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, 11775614263726 + ... + 11775614263735.

It is an arithmetic number, because the mean of its divisors is an integer number (35326842791193).

Almost surely, 2^{117756142637305} is an apocalyptic number.

It is an amenable number.

117756142637305 is a deficient number, since it is larger than the sum of its proper divisors (23551228527467).

117756142637305 is an equidigital number, since it uses as much as digits as its factorization.

117756142637305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23551228527466.

The product of its (nonzero) digits is 22226400, while the sum is 58.

The spelling of 117756142637305 in words is "one hundred seventeen trillion, seven hundred fifty-six billion, one hundred forty-two million, six hundred thirty-seven thousand, three hundred five".