238121428575 has 12 divisors (see below), whose sum is σ = 393694095368. Its totient is φ = 126998095200.

The previous prime is 238121428549. The next prime is 238121428577. The reversal of 238121428575 is 575824121832.

It is not a de Polignac number, because 238121428575 - 2⁹ = 238121428063 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 (238121428577) 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, 1587476116 + ... + 1587476265.

Almost surely, 2^238121428575 is an apocalyptic number.

238121428575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

238121428575 is a deficient number, since it is larger than the sum of its proper divisors (155572666793).

238121428575 is a wasteful number, since it uses less digits than its factorization.

238121428575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3174952394 (or 3174952389 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 48.

The spelling of 238121428575 in words is "two hundred thirty-eight billion, one hundred twenty-one million, four hundred twenty-eight thousand, five hundred seventy-five".