239128795437 has 16 divisors (see below), whose sum is σ = 364399276032. Its totient is φ = 136640323440.

The previous prime is 239128795421. The next prime is 239128795439. The reversal of 239128795437 is 734597821932.

It is a happy number.

It is not a de Polignac number, because 239128795437 - 2⁴ = 239128795421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239128795439) 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, 483612 + ... + 843882.

It is an arithmetic number, because the mean of its divisors is an integer number (22774954752).

Almost surely, 2^239128795437 is an apocalyptic number.

It is an amenable number.

239128795437 is a deficient number, since it is larger than the sum of its proper divisors (125270480595).

239128795437 is a wasteful number, since it uses less digits than its factorization.

239128795437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391888.

The product of its digits is 22861440, while the sum is 60.

The spelling of 239128795437 in words is "two hundred thirty-nine billion, one hundred twenty-eight million, seven hundred ninety-five thousand, four hundred thirty-seven".