117864502597 has 4 divisors (see below), whose sum is σ = 121928795820. Its totient is φ = 113800209376.

The previous prime is 117864502583. The next prime is 117864502601. The reversal of 117864502597 is 795205468711.

It is a Cunningham number, because it is equal to 343314²+1.

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 61804943236 + 56059559361 = 248606^2 + 236769^2 .

It is a cyclic number.

It is not a de Polignac number, because 117864502597 - 2¹¹ = 117864500549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117864502507) 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, 2032146568 + ... + 2032146625.

It is an arithmetic number, because the mean of its divisors is an integer number (30482198955).

Almost surely, 2^117864502597 is an apocalyptic number.

It is an amenable number.

117864502597 is a deficient number, since it is larger than the sum of its proper divisors (4064293223).

117864502597 is an equidigital number, since it uses as much as digits as its factorization.

117864502597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4064293222.

The product of its (nonzero) digits is 4233600, while the sum is 55.

The spelling of 117864502597 in words is "one hundred seventeen billion, eight hundred sixty-four million, five hundred two thousand, five hundred ninety-seven".