238357643405 has 8 divisors (see below), whose sum is σ = 326890482432. Its totient is φ = 163445241168.

The previous prime is 238357643393. The next prime is 238357643429. The reversal of 238357643405 is 504346753832.

It is a happy number.

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 238357643405 - 2¹⁰ = 238357642381 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3405109157 + ... + 3405109226.

It is an arithmetic number, because the mean of its divisors is an integer number (40861310304).

Almost surely, 2^238357643405 is an apocalyptic number.

It is an amenable number.

238357643405 is a deficient number, since it is larger than the sum of its proper divisors (88532839027).

238357643405 is an equidigital number, since it uses as much as digits as its factorization.

238357643405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6810218395.

The product of its (nonzero) digits is 7257600, while the sum is 50.

The spelling of 238357643405 in words is "two hundred thirty-eight billion, three hundred fifty-seven million, six hundred forty-three thousand, four hundred five".