239494969140625 has 81 divisors (see below), whose sum is σ = 329204249904369. Its totient is φ = 174100781250000.

The previous prime is 239494969140619. The next prime is 239494969140629. The reversal of 239494969140625 is 526041969494932.

It is a happy number.

The square root of 239494969140625 is 15475625.

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

239494969140625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 170277627608209 + 69217341532416 = 13049047^2 + 8319696^2 .

It is not a de Polignac number, because 239494969140625 - 2³³ = 239486379206033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (239494969140629) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 106394920750 + ... + 106394923000.

Almost surely, 2^{239494969140625} is an apocalyptic number.

239494969140625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

239494969140625 is the 15475625-th square number.

239494969140625 is the 7737813-rd centered octagonal number.

It is an amenable number.

239494969140625 is a deficient number, since it is larger than the sum of its proper divisors (89709280763744).

239494969140625 is an frugal number, since it uses more digits than its factorization.

239494969140625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4564 (or 2267 counting only the distinct ones).

The product of its (nonzero) digits is 906992640, while the sum is 73.

The spelling of 239494969140625 in words is "two hundred thirty-nine trillion, four hundred ninety-four billion, nine hundred sixty-nine million, one hundred forty thousand, six hundred twenty-five".