239927425921 has 4 divisors (see below), whose sum is σ = 252555185200. Its totient is φ = 227299666644.

The previous prime is 239927425901. The next prime is 239927425937. The reversal of 239927425921 is 129524729932.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 239927425921 - 2¹⁹ = 239926901633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (239927425901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6313879611 + ... + 6313879648.

It is an arithmetic number, because the mean of its divisors is an integer number (63138796300).

Almost surely, 2^239927425921 is an apocalyptic number.

It is an amenable number.

239927425921 is a deficient number, since it is larger than the sum of its proper divisors (12627759279).

239927425921 is a wasteful number, since it uses less digits than its factorization.

239927425921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12627759278.

The product of its digits is 4898880, while the sum is 55.

The spelling of 239927425921 in words is "two hundred thirty-nine billion, nine hundred twenty-seven million, four hundred twenty-five thousand, nine hundred twenty-one".