117921877145833 has 2 divisors, whose sum is σ = 117921877145834. Its totient is φ = 117921877145832.

The previous prime is 117921877145759. The next prime is 117921877145857. The reversal of 117921877145833 is 338541778129711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115668239676889 + 2253637468944 = 10754917^2 + 1501212^2 .

It is a cyclic number.

It is not a de Polignac number, because 117921877145833 - 2³⁷ = 117784438192361 is a prime.

It is not a weakly prime, because it can be changed into another prime (117921877145873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58960938572916 + 58960938572917.

It is an arithmetic number, because the mean of its divisors is an integer number (58960938572917).

Almost surely, 2^{117921877145833} is an apocalyptic number.

It is an amenable number.

117921877145833 is a deficient number, since it is larger than the sum of its proper divisors (1).

117921877145833 is an equidigital number, since it uses as much as digits as its factorization.

117921877145833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 71124480, while the sum is 67.

The spelling of 117921877145833 in words is "one hundred seventeen trillion, nine hundred twenty-one billion, eight hundred seventy-seven million, one hundred forty-five thousand, eight hundred thirty-three".