117521583399 has 64 divisors (see below), whose sum is σ = 193227586560. Its totient is φ = 69996528000.

The previous prime is 117521583383. The next prime is 117521583437. The reversal of 117521583399 is 993385125711.

117521583399 is a `hidden beast` number, since 1 + 1 + 7 + 5 + 21 + 583 + 39 + 9 = 666.

It is not a de Polignac number, because 117521583399 - 2⁴ = 117521583383 is a prime.

It is a super-2 number, since 2×117521583399² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117521583349) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6675789 + ... + 6693369.

It is an arithmetic number, because the mean of its divisors is an integer number (3019181040).

Almost surely, 2^117521583399 is an apocalyptic number.

117521583399 is a deficient number, since it is larger than the sum of its proper divisors (75706003161).

117521583399 is a wasteful number, since it uses less digits than its factorization.

117521583399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17989 (or 17983 counting only the distinct ones).

The product of its digits is 2041200, while the sum is 54.

The spelling of 117521583399 in words is "one hundred seventeen billion, five hundred twenty-one million, five hundred eighty-three thousand, three hundred ninety-nine".