238763864775 has 12 divisors (see below), whose sum is σ = 394756256552. Its totient is φ = 127340727840.

The previous prime is 238763864771. The next prime is 238763864809. The reversal of 238763864775 is 577468367832.

It is not a de Polignac number, because 238763864775 - 2² = 238763864771 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238763864771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1591759024 + ... + 1591759173.

Almost surely, 2^238763864775 is an apocalyptic number.

238763864775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

238763864775 is a deficient number, since it is larger than the sum of its proper divisors (155992391777).

238763864775 is a wasteful number, since it uses less digits than its factorization.

238763864775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3183518210 (or 3183518205 counting only the distinct ones).

The product of its digits is 284497920, while the sum is 66.

The spelling of 238763864775 in words is "two hundred thirty-eight billion, seven hundred sixty-three million, eight hundred sixty-four thousand, seven hundred seventy-five".