238142881481 has 16 divisors (see below), whose sum is σ = 253145088000. Its totient is φ = 223252770048.

The previous prime is 238142881463. The next prime is 238142881507. The reversal of 238142881481 is 184188241832.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-238142881481 is a prime.

It is a super-2 number, since 2×238142881481² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238142881451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4625720 + ... + 4676918.

It is an arithmetic number, because the mean of its divisors is an integer number (15821568000).

Almost surely, 2^238142881481 is an apocalyptic number.

It is an amenable number.

238142881481 is a deficient number, since it is larger than the sum of its proper divisors (15002206519).

238142881481 is a wasteful number, since it uses less digits than its factorization.

238142881481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52288.

The product of its digits is 786432, while the sum is 50.

The spelling of 238142881481 in words is "two hundred thirty-eight billion, one hundred forty-two million, eight hundred eighty-one thousand, four hundred eighty-one".