117499209729 has 24 divisors (see below), whose sum is σ = 176856845760. Its totient is φ = 69286995360.

The previous prime is 117499209721. The next prime is 117499209731. The reversal of 117499209729 is 927902994711.

It is not a de Polignac number, because 117499209729 - 2³ = 117499209721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117499209721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4360749 + ... + 4387610.

It is an arithmetic number, because the mean of its divisors is an integer number (7369035240).

Almost surely, 2^117499209729 is an apocalyptic number.

It is an amenable number.

117499209729 is a deficient number, since it is larger than the sum of its proper divisors (59357636031).

117499209729 is a wasteful number, since it uses less digits than its factorization.

117499209729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8748421 (or 8748410 counting only the distinct ones).

The product of its (nonzero) digits is 5143824, while the sum is 60.

The spelling of 117499209729 in words is "one hundred seventeen billion, four hundred ninety-nine million, two hundred nine thousand, seven hundred twenty-nine".