239899621149 has 6 divisors (see below), whose sum is σ = 346521675006. Its totient is φ = 159933080760.

The previous prime is 239899621147. The next prime is 239899621183. The reversal of 239899621149 is 941126998932.

It can be written as a sum of positive squares in only one way, i.e., 221699722500 + 18199898649 = 470850^2 + 134907^2 .

It is not a de Polignac number, because 239899621149 - 2¹ = 239899621147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239899621147) 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 5 ways as a sum of consecutive naturals, for example, 13327756722 + ... + 13327756739.

It is an arithmetic number, because the mean of its divisors is an integer number (57753612501).

Almost surely, 2^239899621149 is an apocalyptic number.

It is an amenable number.

239899621149 is a deficient number, since it is larger than the sum of its proper divisors (106622053857).

239899621149 is a wasteful number, since it uses less digits than its factorization.

239899621149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26655513467 (or 26655513464 counting only the distinct ones).

The product of its digits is 15116544, while the sum is 63.

The spelling of 239899621149 in words is "two hundred thirty-nine billion, eight hundred ninety-nine million, six hundred twenty-one thousand, one hundred forty-nine".