239826811087 has 6 divisors (see below), whose sum is σ = 243822854184. Its totient is φ = 235895220360.

The previous prime is 239826811061. The next prime is 239826811093. The reversal of 239826811087 is 780118628932.

It is not a de Polignac number, because 239826811087 - 2⁷ = 239826810959 is a prime.

It is a super-2 number, since 2×239826811087² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239826811187) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32222403 + ... + 32229844.

It is an arithmetic number, because the mean of its divisors is an integer number (40637142364).

Almost surely, 2^239826811087 is an apocalyptic number.

239826811087 is a deficient number, since it is larger than the sum of its proper divisors (3996043097).

239826811087 is an frugal number, since it uses more digits than its factorization.

239826811087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64452369 (or 64452308 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 55.

The spelling of 239826811087 in words is "two hundred thirty-nine billion, eight hundred twenty-six million, eight hundred eleven thousand, eighty-seven".