38142074881 has 2 divisors, whose sum is σ = 38142074882. Its totient is φ = 38142074880.

The previous prime is 38142074849. The next prime is 38142074941. The reversal of 38142074881 is 18847024183.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29475395856 + 8666679025 = 171684^2 + 93095^2 .

It is a cyclic number.

It is not a de Polignac number, because 38142074881 - 2⁵ = 38142074849 is a prime.

It is a super-2 number, since 2×38142074881² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38142074281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19071037440 + 19071037441.

It is an arithmetic number, because the mean of its divisors is an integer number (19071037441).

Almost surely, 2^38142074881 is an apocalyptic number.

It is an amenable number.

38142074881 is a deficient number, since it is larger than the sum of its proper divisors (1).

38142074881 is an equidigital number, since it uses as much as digits as its factorization.

38142074881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 344064, while the sum is 46.

The spelling of 38142074881 in words is "thirty-eight billion, one hundred forty-two million, seventy-four thousand, eight hundred eighty-one".