239986721163 has 128 divisors (see below), whose sum is σ = 393769984000. Its totient is φ = 129816400896.

The previous prime is 239986721071. The next prime is 239986721207. The reversal of 239986721163 is 361127689932.

It is not a de Polignac number, because 239986721163 - 2⁸ = 239986720907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (239986721063) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 219566445 + ... + 219567537.

It is an arithmetic number, because the mean of its divisors is an integer number (3076328000).

Almost surely, 2^239986721163 is an apocalyptic number.

239986721163 is a deficient number, since it is larger than the sum of its proper divisors (153783262837).

239986721163 is a wasteful number, since it uses less digits than its factorization.

239986721163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306 (or 1292 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 57.

The spelling of 239986721163 in words is "two hundred thirty-nine billion, nine hundred eighty-six million, seven hundred twenty-one thousand, one hundred sixty-three".