38143834129 has 2 divisors, whose sum is σ = 38143834130. Its totient is φ = 38143834128.

The previous prime is 38143834111. The next prime is 38143834187. The reversal of 38143834129 is 92143834183.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29981615104 + 8162219025 = 173152^2 + 90345^2 .

It is an emirp because it is prime and its reverse (92143834183) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38143834129 - 2⁹ = 38143833617 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (38143834229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19071917064 + 19071917065.

It is an arithmetic number, because the mean of its divisors is an integer number (19071917065).

Almost surely, 2^38143834129 is an apocalyptic number.

It is an amenable number.

38143834129 is a deficient number, since it is larger than the sum of its proper divisors (1).

38143834129 is an equidigital number, since it uses as much as digits as its factorization.

38143834129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497664, while the sum is 46.

The spelling of 38143834129 in words is "thirty-eight billion, one hundred forty-three million, eight hundred thirty-four thousand, one hundred twenty-nine".