239831489247 has 16 divisors (see below), whose sum is σ = 365489602560. Its totient is φ = 137034529632.

The previous prime is 239831489239. The next prime is 239831489257. The reversal of 239831489247 is 742984138932.

It is not a de Polignac number, because 239831489247 - 2³ = 239831489239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239831489257) 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 15 ways as a sum of consecutive naturals, for example, 253828 + ... + 737625.

It is an arithmetic number, because the mean of its divisors is an integer number (22843100160).

Almost surely, 2^239831489247 is an apocalyptic number.

239831489247 is a deficient number, since it is larger than the sum of its proper divisors (125658113313).

239831489247 is a wasteful number, since it uses less digits than its factorization.

239831489247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002982.

The product of its digits is 20901888, while the sum is 60.

The spelling of 239831489247 in words is "two hundred thirty-nine billion, eight hundred thirty-one million, four hundred eighty-nine thousand, two hundred forty-seven".