238937147457 has 32 divisors (see below), whose sum is σ = 342423313920. Its totient is φ = 147660318720.

The previous prime is 238937147447. The next prime is 238937147497. The reversal of 238937147457 is 754741739832.

It is not a de Polignac number, because 238937147457 - 2⁸ = 238937147201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 238937147457.

It is not an unprimeable number, because it can be changed into a prime (238937147447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2632207 + ... + 2721467.

It is an arithmetic number, because the mean of its divisors is an integer number (10700728560).

Almost surely, 2^238937147457 is an apocalyptic number.

It is an amenable number.

238937147457 is a deficient number, since it is larger than the sum of its proper divisors (103486166463).

238937147457 is a wasteful number, since it uses less digits than its factorization.

238937147457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90073.

The product of its digits is 35562240, while the sum is 60.

The spelling of 238937147457 in words is "two hundred thirty-eight billion, nine hundred thirty-seven million, one hundred forty-seven thousand, four hundred fifty-seven".