238119019681 has 2 divisors, whose sum is σ = 238119019682. Its totient is φ = 238119019680.

The previous prime is 238119019661. The next prime is 238119019709. The reversal of 238119019681 is 186910911832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 167349719056 + 70769300625 = 409084^2 + 266025^2 .

It is a cyclic number.

It is not a de Polignac number, because 238119019681 - 2²⁷ = 237984801953 is a prime.

It is a super-2 number, since 2×238119019681² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (238119019651) 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 as a sum of consecutive naturals, namely, 119059509840 + 119059509841.

It is an arithmetic number, because the mean of its divisors is an integer number (119059509841).

Almost surely, 2^238119019681 is an apocalyptic number.

It is an amenable number.

238119019681 is a deficient number, since it is larger than the sum of its proper divisors (1).

238119019681 is an equidigital number, since it uses as much as digits as its factorization.

238119019681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 49.

The spelling of 238119019681 in words is "two hundred thirty-eight billion, one hundred nineteen million, nineteen thousand, six hundred eighty-one".