238807750833 has 6 divisors (see below), whose sum is σ = 344944528994. Its totient is φ = 159205167216.

The previous prime is 238807750711. The next prime is 238807750871. The reversal of 238807750833 is 338057708832.

238807750833 is a `hidden beast` number, since 2 + 38 + 8 + 0 + 77 + 508 + 33 = 666.

It can be written as a sum of positive squares in only one way, i.e., 209303505009 + 29504245824 = 457497^2 + 171768^2 .

It is a de Polignac number, because none of the positive numbers 2^k-238807750833 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 238807750833.

It is not an unprimeable number, because it can be changed into a prime (238807750133) 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, 13267097260 + ... + 13267097277.

Almost surely, 2^238807750833 is an apocalyptic number.

It is an amenable number.

238807750833 is a deficient number, since it is larger than the sum of its proper divisors (106136778161).

238807750833 is a wasteful number, since it uses less digits than its factorization.

238807750833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26534194543 (or 26534194540 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 54.

The spelling of 238807750833 in words is "two hundred thirty-eight billion, eight hundred seven million, seven hundred fifty thousand, eight hundred thirty-three".