238618031427 has 12 divisors (see below), whose sum is σ = 350320826544. Its totient is φ = 156470839920.

The previous prime is 238618031419. The next prime is 238618031429. The reversal of 238618031427 is 724130816832.

238618031427 is a `hidden beast` number, since 2 + 3 + 8 + 618 + 0 + 3 + 1 + 4 + 27 = 666.

It is not a de Polignac number, because 238618031427 - 2³ = 238618031419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (238618031429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 217320063 + ... + 217321160.

It is an arithmetic number, because the mean of its divisors is an integer number (29193402212).

Almost surely, 2^238618031427 is an apocalyptic number.

238618031427 is a deficient number, since it is larger than the sum of its proper divisors (111702795117).

238618031427 is a wasteful number, since it uses less digits than its factorization.

238618031427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434641290 (or 434641287 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 238618031427 in words is "two hundred thirty-eight billion, six hundred eighteen million, thirty-one thousand, four hundred twenty-seven".