239128459099 has 16 divisors (see below), whose sum is σ = 260111290176. Its totient is φ = 218917555200.

The previous prime is 239128459079. The next prime is 239128459117. The reversal of 239128459099 is 990954821932.

It is a cyclic number.

It is not a de Polignac number, because 239128459099 - 2⁵ = 239128459067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (239128459039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2257279 + ... + 2360839.

It is an arithmetic number, because the mean of its divisors is an integer number (16256955636).

Almost surely, 2^239128459099 is an apocalyptic number.

239128459099 is a deficient number, since it is larger than the sum of its proper divisors (20982831077).

239128459099 is a wasteful number, since it uses less digits than its factorization.

239128459099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107286.

The product of its (nonzero) digits is 12597120, while the sum is 61.

The spelling of 239128459099 in words is "two hundred thirty-nine billion, one hundred twenty-eight million, four hundred fifty-nine thousand, ninety-nine".