238865463310311 has 64 divisors (see below), whose sum is σ = 361759523811840. Its totient is φ = 155736527696640.

The previous prime is 238865463310297. The next prime is 238865463310333. The reversal of 238865463310311 is 113013364568832.

238865463310311 is a `hidden beast` number, since 2 + 3 + 8 + 8 + 6 + 5 + 4 + 6 + 3 + 310 + 311 = 666.

It is not a de Polignac number, because 238865463310311 - 2¹⁹ = 238865462786023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238865463310391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 316381581 + ... + 317135673.

It is an arithmetic number, because the mean of its divisors is an integer number (5652492559560).

Almost surely, 2^{238865463310311} is an apocalyptic number.

238865463310311 is a deficient number, since it is larger than the sum of its proper divisors (122894060501529).

238865463310311 is a wasteful number, since it uses less digits than its factorization.

238865463310311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755613 (or 755607 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 54.

The spelling of 238865463310311 in words is "two hundred thirty-eight trillion, eight hundred sixty-five billion, four hundred sixty-three million, three hundred ten thousand, three hundred eleven".