238397402879 has 8 divisors (see below), whose sum is σ = 248882790240. Its totient is φ = 227922039136.

The previous prime is 238397402857. The next prime is 238397402891. The reversal of 238397402879 is 978204793832.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-238397402879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238397402179) 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, 2457272 + ... + 2552445.

It is an arithmetic number, because the mean of its divisors is an integer number (31110348780).

Almost surely, 2^238397402879 is an apocalyptic number.

238397402879 is a deficient number, since it is larger than the sum of its proper divisors (10485387361).

238397402879 is a wasteful number, since it uses less digits than its factorization.

238397402879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5011809.

The product of its (nonzero) digits is 36578304, while the sum is 62.

The spelling of 238397402879 in words is "two hundred thirty-eight billion, three hundred ninety-seven million, four hundred two thousand, eight hundred seventy-nine".