238913099140658 has 16 divisors (see below), whose sum is σ = 377232379451520. Its totient is φ = 113169011666256.

The previous prime is 238913099140631. The next prime is 238913099140711. The reversal of 238913099140658 is 856041990319832.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2869991 + ... + 22046837.

It is an arithmetic number, because the mean of its divisors is an integer number (23577023715720).

Almost surely, 2^{238913099140658} is an apocalyptic number.

238913099140658 is a deficient number, since it is larger than the sum of its proper divisors (138319280310862).

238913099140658 is a wasteful number, since it uses less digits than its factorization.

238913099140658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19504721.

The product of its (nonzero) digits is 100776960, while the sum is 68.

The spelling of 238913099140658 in words is "two hundred thirty-eight trillion, nine hundred thirteen billion, ninety-nine million, one hundred forty thousand, six hundred fifty-eight".