38946233129 has 2 divisors, whose sum is σ = 38946233130. Its totient is φ = 38946233128.

The previous prime is 38946233099. The next prime is 38946233167. The reversal of 38946233129 is 92133264983.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38946233104 + 25 = 197348^2 + 5^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38946233129 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (38946233629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19473116564 + 19473116565.

It is an arithmetic number, because the mean of its divisors is an integer number (19473116565).

Almost surely, 2^38946233129 is an apocalyptic number.

It is an amenable number.

38946233129 is a deficient number, since it is larger than the sum of its proper divisors (1).

38946233129 is an equidigital number, since it uses as much as digits as its factorization.

38946233129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1679616, while the sum is 50.

The spelling of 38946233129 in words is "thirty-eight billion, nine hundred forty-six million, two hundred thirty-three thousand, one hundred twenty-nine".