238891305983 has 8 divisors (see below), whose sum is σ = 271939510656. Its totient is φ = 207731570200.

The previous prime is 238891305977. The next prime is 238891306013. The reversal of 238891305983 is 389503198832.

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

It is not a de Polignac number, because 238891305983 - 2⁴ = 238891305967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238891305923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 472116953 + ... + 472117458.

It is an arithmetic number, because the mean of its divisors is an integer number (33992438832).

Almost surely, 2^238891305983 is an apocalyptic number.

238891305983 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

238891305983 is a deficient number, since it is larger than the sum of its proper divisors (33048204673).

238891305983 is a wasteful number, since it uses less digits than its factorization.

238891305983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944234445.

The product of its (nonzero) digits is 11197440, while the sum is 59.

The spelling of 238891305983 in words is "two hundred thirty-eight billion, eight hundred ninety-one million, three hundred five thousand, nine hundred eighty-three".