239891225593 has 4 divisors (see below), whose sum is σ = 240128039268. Its totient is φ = 239654411920.

The previous prime is 239891225543. The next prime is 239891225599. The reversal of 239891225593 is 395522198932.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38287531584 + 201603694009 = 195672^2 + 449003^2 .

It is a cyclic number.

It is not a de Polignac number, because 239891225593 - 2²¹ = 239889128441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (239891225599) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118405318 + ... + 118407343.

It is an arithmetic number, because the mean of its divisors is an integer number (60032009817).

Almost surely, 2^239891225593 is an apocalyptic number.

It is an amenable number.

239891225593 is a deficient number, since it is larger than the sum of its proper divisors (236813675).

239891225593 is a wasteful number, since it uses less digits than its factorization.

239891225593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236813674.

The product of its digits is 10497600, while the sum is 58.

The spelling of 239891225593 in words is "two hundred thirty-nine billion, eight hundred ninety-one million, two hundred twenty-five thousand, five hundred ninety-three".