38165698489 has 2 divisors, whose sum is σ = 38165698490. Its totient is φ = 38165698488.

The previous prime is 38165698457. The next prime is 38165698511. The reversal of 38165698489 is 98489656183.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33225998400 + 4939700089 = 182280^2 + 70283^2 .

It is a cyclic number.

It is not a de Polignac number, because 38165698489 - 2⁵ = 38165698457 is a prime.

It is not a weakly prime, because it can be changed into another prime (38165698409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19082849244 + 19082849245.

It is an arithmetic number, because the mean of its divisors is an integer number (19082849245).

Almost surely, 2^38165698489 is an apocalyptic number.

It is an amenable number.

38165698489 is a deficient number, since it is larger than the sum of its proper divisors (1).

38165698489 is an equidigital number, since it uses as much as digits as its factorization.

38165698489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 89579520, while the sum is 67.

The spelling of 38165698489 in words is "thirty-eight billion, one hundred sixty-five million, six hundred ninety-eight thousand, four hundred eighty-nine".