238764759861 has 8 divisors (see below), whose sum is σ = 318356958400. Its totient is φ = 159174533952.

The previous prime is 238764759859. The next prime is 238764759869. The reversal of 238764759861 is 168957467832.

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

It is not a de Polignac number, because 238764759861 - 2¹ = 238764759859 is a prime.

It is a super-2 number, since 2×238764759861² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 238764759792 and 238764759801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238764759869) 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, 182836 + ... + 714813.

It is an arithmetic number, because the mean of its divisors is an integer number (39794619800).

Almost surely, 2^238764759861 is an apocalyptic number.

It is an amenable number.

238764759861 is a deficient number, since it is larger than the sum of its proper divisors (79592198539).

238764759861 is an equidigital number, since it uses as much as digits as its factorization.

238764759861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986315.

The product of its digits is 121927680, while the sum is 66.

The spelling of 238764759861 in words is "two hundred thirty-eight billion, seven hundred sixty-four million, seven hundred fifty-nine thousand, eight hundred sixty-one".