117756142637321 has 2 divisors, whose sum is σ = 117756142637322. Its totient is φ = 117756142637320.

The previous prime is 117756142637311. The next prime is 117756142637327. The reversal of 117756142637321 is 123736241657711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102610315605625 + 15145827031696 = 10129675^2 + 3891764^2 .

It is a cyclic number.

It is not a de Polignac number, because 117756142637321 - 2¹⁴ = 117756142620937 is a prime.

It is not a weakly prime, because it can be changed into another prime (117756142637327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58878071318660 + 58878071318661.

It is an arithmetic number, because the mean of its divisors is an integer number (58878071318661).

Almost surely, 2^{117756142637321} is an apocalyptic number.

It is an amenable number.

117756142637321 is a deficient number, since it is larger than the sum of its proper divisors (1).

117756142637321 is an equidigital number, since it uses as much as digits as its factorization.

117756142637321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8890560, while the sum is 56.

The spelling of 117756142637321 in words is "one hundred seventeen trillion, seven hundred fifty-six billion, one hundred forty-two million, six hundred thirty-seven thousand, three hundred twenty-one".