238793263387 has 4 divisors (see below), whose sum is σ = 272906586736. Its totient is φ = 204679940040.

The previous prime is 238793263343. The next prime is 238793263421. The reversal of 238793263387 is 783362397832.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 238793263387 - 2⁷ = 238793263259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (238793263307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17056661664 + ... + 17056661677.

It is an arithmetic number, because the mean of its divisors is an integer number (68226646684).

Almost surely, 2^238793263387 is an apocalyptic number.

238793263387 is a deficient number, since it is larger than the sum of its proper divisors (34113323349).

238793263387 is an equidigital number, since it uses as much as digits as its factorization.

238793263387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34113323348.

The product of its digits is 54867456, while the sum is 61.

The spelling of 238793263387 in words is "two hundred thirty-eight billion, seven hundred ninety-three million, two hundred sixty-three thousand, three hundred eighty-seven".