238747860421 has 8 divisors (see below), whose sum is σ = 273726440384. Its totient is φ = 203987216160.

The previous prime is 238747860401. The next prime is 238747860431. The reversal of 238747860421 is 124068747832.

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

It is a de Polignac number, because none of the positive numbers 2^k-238747860421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238747860401) 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, 54481575 + ... + 54485956.

It is an arithmetic number, because the mean of its divisors is an integer number (34215805048).

Almost surely, 2^238747860421 is an apocalyptic number.

It is an amenable number.

238747860421 is a deficient number, since it is larger than the sum of its proper divisors (34978579963).

238747860421 is a wasteful number, since it uses less digits than its factorization.

238747860421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108967851.

The product of its (nonzero) digits is 3612672, while the sum is 52.

The spelling of 238747860421 in words is "two hundred thirty-eight billion, seven hundred forty-seven million, eight hundred sixty thousand, four hundred twenty-one".