239957974799 has 2 divisors, whose sum is σ = 239957974800. Its totient is φ = 239957974798.

The previous prime is 239957974759. The next prime is 239957974807. The reversal of 239957974799 is 997479759932.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 239957974799 - 2³⁶ = 171238498063 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (239957974759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119978987399 + 119978987400.

It is an arithmetic number, because the mean of its divisors is an integer number (119978987400).

Almost surely, 2^239957974799 is an apocalyptic number.

239957974799 is a deficient number, since it is larger than the sum of its proper divisors (1).

239957974799 is an equidigital number, since it uses as much as digits as its factorization.

239957974799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2430456840, while the sum is 80.

The spelling of 239957974799 in words is "two hundred thirty-nine billion, nine hundred fifty-seven million, nine hundred seventy-four thousand, seven hundred ninety-nine".