38145876617 has 2 divisors, whose sum is σ = 38145876618. Its totient is φ = 38145876616.

The previous prime is 38145876611. The next prime is 38145876707. The reversal of 38145876617 is 71667854183.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31722815881 + 6423060736 = 178109^2 + 80144^2 .

It is a cyclic number.

It is not a de Polignac number, because 38145876617 - 2¹² = 38145872521 is a prime.

It is not a weakly prime, because it can be changed into another prime (38145876611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19072938308 + 19072938309.

It is an arithmetic number, because the mean of its divisors is an integer number (19072938309).

Almost surely, 2^38145876617 is an apocalyptic number.

It is an amenable number.

38145876617 is a deficient number, since it is larger than the sum of its proper divisors (1).

38145876617 is an equidigital number, since it uses as much as digits as its factorization.

38145876617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6773760, while the sum is 56.

The spelling of 38145876617 in words is "thirty-eight billion, one hundred forty-five million, eight hundred seventy-six thousand, six hundred seventeen".