117439863025 has 9 divisors (see below), whose sum is σ = 145627554891. Its totient is φ = 93950519640.

The previous prime is 117439863019. The next prime is 117439863043. The reversal of 117439863025 is 520368934711.

The square root of 117439863025 is 342695.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 42278350689 + 75161512336 = 205617^2 + 274156^2 .

It is not a de Polignac number, because 117439863025 - 2³ = 117439863017 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 117439863025.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1679206 + ... + 1747744.

It is a 1-persistent number, because it is pandigital, but 2⋅117439863025 = 234879726050 is not.

Almost surely, 2^117439863025 is an apocalyptic number.

117439863025 is the 342695-th square number.

117439863025 is the 171348-th centered octagonal number.

It is an amenable number.

117439863025 is a deficient number, since it is larger than the sum of its proper divisors (28187691866).

117439863025 is an frugal number, since it uses more digits than its factorization.

117439863025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137088 (or 68544 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 49.

Multiplying 117439863025 by its sum of digits (49), we get a square (5754553288225 = 2398865²).

The spelling of 117439863025 in words is "one hundred seventeen billion, four hundred thirty-nine million, eight hundred sixty-three thousand, twenty-five".