117536864639251 has 2 divisors, whose sum is σ = 117536864639252. Its totient is φ = 117536864639250.

The previous prime is 117536864639213. The next prime is 117536864639401. The reversal of 117536864639251 is 152936468635711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117536864639251 - 2¹³ = 117536864631059 is a prime.

It is a super-2 number, since 2×117536864639251² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (117536864639651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58768432319625 + 58768432319626.

It is an arithmetic number, because the mean of its divisors is an integer number (58768432319626).

Almost surely, 2^{117536864639251} is an apocalyptic number.

117536864639251 is a deficient number, since it is larger than the sum of its proper divisors (1).

117536864639251 is an equidigital number, since it uses as much as digits as its factorization.

117536864639251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 195955200, while the sum is 67.

The spelling of 117536864639251 in words is "one hundred seventeen trillion, five hundred thirty-six billion, eight hundred sixty-four million, six hundred thirty-nine thousand, two hundred fifty-one".