117890056729 has 8 divisors (see below), whose sum is σ = 120121020360. Its totient is φ = 115659338496.

The previous prime is 117890056727. The next prime is 117890056763. The reversal of 117890056729 is 927650098711.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 25548825600 + 92341231129 = 159840^2 + 303877^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 117890056729 - 2¹ = 117890056727 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117890056729.

It is not an unprimeable number, because it can be changed into a prime (117890056727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1122579 + ... + 1223095.

It is an arithmetic number, because the mean of its divisors is an integer number (15015127545).

Almost surely, 2^117890056729 is an apocalyptic number.

It is an amenable number.

117890056729 is a deficient number, since it is larger than the sum of its proper divisors (2230963631).

117890056729 is a wasteful number, since it uses less digits than its factorization.

117890056729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122699.

The product of its (nonzero) digits is 1905120, while the sum is 55.

The spelling of 117890056729 in words is "one hundred seventeen billion, eight hundred ninety million, fifty-six thousand, seven hundred twenty-nine".