238969148138 has 64 divisors (see below), whose sum is σ = 449214087168. Its totient is φ = 92976802560.

The previous prime is 238969148083. The next prime is 238969148141. The reversal of 238969148138 is 831841969832.

It is a Harshad number since it is a multiple of its sum of digits (62).

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 31 ways as a sum of consecutive naturals, for example, 2212295 + ... + 2317797.

It is an arithmetic number, because the mean of its divisors is an integer number (7018970112).

Almost surely, 2^238969148138 is an apocalyptic number.

238969148138 is a deficient number, since it is larger than the sum of its proper divisors (210244939030).

238969148138 is a wasteful number, since it uses less digits than its factorization.

238969148138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105867.

The product of its digits is 17915904, while the sum is 62.

The spelling of 238969148138 in words is "two hundred thirty-eight billion, nine hundred sixty-nine million, one hundred forty-eight thousand, one hundred thirty-eight".