239138512236 has 288 divisors, whose sum is σ = 712986333696. Its totient is φ = 66880512000.

The previous prime is 239138512201. The next prime is 239138512241. The reversal of 239138512236 is 632215831932.

239138512236 is a `hidden beast` number, since 2 + 39 + 1 + 385 + 1 + 2 + 236 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 239138512191 and 239138512200.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 202487566 + ... + 202488746.

It is an arithmetic number, because the mean of its divisors is an integer number (2475646992).

Almost surely, 2^239138512236 is an apocalyptic number.

239138512236 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 239138512236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356493166848).

239138512236 is an abundant number, since it is smaller than the sum of its proper divisors (473847821460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

239138512236 is a wasteful number, since it uses less digits than its factorization.

239138512236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2073 (or 2068 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The spelling of 239138512236 in words is "two hundred thirty-nine billion, one hundred thirty-eight million, five hundred twelve thousand, two hundred thirty-six".