238378328837 has 4 divisors (see below), whose sum is σ = 260049086016. Its totient is φ = 216707571660.

The previous prime is 238378328831. The next prime is 238378328861. The reversal of 238378328837 is 738823873832.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 238378328837 - 2⁸ = 238378328581 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 238378328837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238378328831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10835378573 + ... + 10835378594.

It is an arithmetic number, because the mean of its divisors is an integer number (65012271504).

Almost surely, 2^238378328837 is an apocalyptic number.

It is an amenable number.

238378328837 is a deficient number, since it is larger than the sum of its proper divisors (21670757179).

238378328837 is a wasteful number, since it uses less digits than its factorization.

238378328837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21670757178.

The product of its digits is 65028096, while the sum is 62.

The spelling of 238378328837 in words is "two hundred thirty-eight billion, three hundred seventy-eight million, three hundred twenty-eight thousand, eight hundred thirty-seven".