238396901621759 has 8 divisors (see below), whose sum is σ = 238463507948160. Its totient is φ = 238330298981016.

The previous prime is 238396901621737. The next prime is 238396901621773. The reversal of 238396901621759 is 957126109693832.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 238396901621759 - 2⁸ = 238396901621503 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 238396901621692 and 238396901621701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238396901621779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131098022 + ... + 132904044.

It is an arithmetic number, because the mean of its divisors is an integer number (29807938493520).

Almost surely, 2^{238396901621759} is an apocalyptic number.

238396901621759 is a deficient number, since it is larger than the sum of its proper divisors (66606326401).

238396901621759 is a wasteful number, since it uses less digits than its factorization.

238396901621759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842829.

The product of its (nonzero) digits is 264539520, while the sum is 71.

The spelling of 238396901621759 in words is "two hundred thirty-eight trillion, three hundred ninety-six billion, nine hundred one million, six hundred twenty-one thousand, seven hundred fifty-nine".