38017128913 has 2 divisors, whose sum is σ = 38017128914. Its totient is φ = 38017128912.

The previous prime is 38017128893. The next prime is 38017128967. The reversal of 38017128913 is 31982171083.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37539837504 + 477291409 = 193752^2 + 21847^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38017128913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38017128913.

It is not a weakly prime, because it can be changed into another prime (38017128013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19008564456 + 19008564457.

It is an arithmetic number, because the mean of its divisors is an integer number (19008564457).

Almost surely, 2^38017128913 is an apocalyptic number.

It is an amenable number.

38017128913 is a deficient number, since it is larger than the sum of its proper divisors (1).

38017128913 is an equidigital number, since it uses as much as digits as its factorization.

38017128913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 43.

Adding to 38017128913 its reverse (31982171083), we get a palindrome (69999299996).

The spelling of 38017128913 in words is "thirty-eight billion, seventeen million, one hundred twenty-eight thousand, nine hundred thirteen".