238364981825 has 18 divisors (see below), whose sum is σ = 298528332882. Its totient is φ = 188803744000.

The previous prime is 238364981759. The next prime is 238364981843. The reversal of 238364981825 is 528189463832.

It can be written as a sum of positive squares in 9 ways, for example, as 7233842704 + 231131139121 = 85052^2 + 480761^2 .

It is not a de Polignac number, because 238364981825 - 2¹⁰ = 238364980801 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 212312 + ... + 722361.

Almost surely, 2^238364981825 is an apocalyptic number.

238364981825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

238364981825 is a deficient number, since it is larger than the sum of its proper divisors (60163351057).

238364981825 is an equidigital number, since it uses as much as digits as its factorization.

238364981825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934885 (or 934779 counting only the distinct ones).

The product of its digits is 19906560, while the sum is 59.

The spelling of 238364981825 in words is "two hundred thirty-eight billion, three hundred sixty-four million, nine hundred eighty-one thousand, eight hundred twenty-five".