238972684447497 has 768 divisors, whose sum is σ = 478502834503680. Its totient is φ = 103929935155200.

The previous prime is 238972684447477. The next prime is 238972684447583. The reversal of 238972684447497 is 794744486279832.

It is not a de Polignac number, because 238972684447497 - 2²⁰ = 238972683398921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (238972684447457) by changing a digit.

It is a polite number, since it can be written in 767 ways as a sum of consecutive naturals, for example, 138695695278 + ... + 138695697000.

It is an arithmetic number, because the mean of its divisors is an integer number (623050565760).

Almost surely, 2^{238972684447497} is an apocalyptic number.

It is an amenable number.

238972684447497 is an abundant number, since it is smaller than the sum of its proper divisors (239530150056183).

238972684447497 is a wasteful number, since it uses less digits than its factorization.

238972684447497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1994 (or 1987 counting only the distinct ones).

The product of its digits is 32774160384, while the sum is 84.

The spelling of 238972684447497 in words is "two hundred thirty-eight trillion, nine hundred seventy-two billion, six hundred eighty-four million, four hundred forty-seven thousand, four hundred ninety-seven".