117446635531 has 2 divisors, whose sum is σ = 117446635532. Its totient is φ = 117446635530.

The previous prime is 117446635513. The next prime is 117446635571. The reversal of 117446635531 is 135536644711.

Together with previous prime (117446635513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117446635531 is a prime.

It is a super-2 number, since 2×117446635531² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (117446635571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58723317765 + 58723317766.

It is an arithmetic number, because the mean of its divisors is an integer number (58723317766).

Almost surely, 2^117446635531 is an apocalyptic number.

117446635531 is a deficient number, since it is larger than the sum of its proper divisors (1).

117446635531 is an equidigital number, since it uses as much as digits as its factorization.

117446635531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 907200, while the sum is 46.

The spelling of 117446635531 in words is "one hundred seventeen billion, four hundred forty-six million, six hundred thirty-five thousand, five hundred thirty-one".