38631012073 has 2 divisors, whose sum is σ = 38631012074. Its totient is φ = 38631012072.

The previous prime is 38631012011. The next prime is 38631012089. The reversal of 38631012073 is 37021013683.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23197422249 + 15433589824 = 152307^2 + 124232^2 .

It is an emirp because it is prime and its reverse (37021013683) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38631012073 - 2⁹ = 38631011561 is a prime.

It is not a weakly prime, because it can be changed into another prime (38634012073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19315506036 + 19315506037.

It is an arithmetic number, because the mean of its divisors is an integer number (19315506037).

Almost surely, 2^38631012073 is an apocalyptic number.

It is an amenable number.

38631012073 is a deficient number, since it is larger than the sum of its proper divisors (1).

38631012073 is an equidigital number, since it uses as much as digits as its factorization.

38631012073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 34.

The spelling of 38631012073 in words is "thirty-eight billion, six hundred thirty-one million, twelve thousand, seventy-three".