38430332081 has 2 divisors, whose sum is σ = 38430332082. Its totient is φ = 38430332080.

The previous prime is 38430332077. The next prime is 38430332089. The reversal of 38430332081 is 18023303483.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35510010481 + 2920321600 = 188441^2 + 54040^2 .

It is a cyclic number.

It is not a de Polignac number, because 38430332081 - 2² = 38430332077 is a prime.

It is a super-2 number, since 2×38430332081² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38430332089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19215166040 + 19215166041.

It is an arithmetic number, because the mean of its divisors is an integer number (19215166041).

Almost surely, 2^38430332081 is an apocalyptic number.

It is an amenable number.

38430332081 is a deficient number, since it is larger than the sum of its proper divisors (1).

38430332081 is an equidigital number, since it uses as much as digits as its factorization.

38430332081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 38430332081 in words is "thirty-eight billion, four hundred thirty million, three hundred thirty-two thousand, eighty-one".