999989162797337 has 2 divisors, whose sum is σ = 999989162797338. Its totient is φ = 999989162797336.

The previous prime is 999989162797277. The next prime is 999989162797381. The reversal of 999989162797337 is 733797261989999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 741161203724176 + 258827959073161 = 27224276^2 + 16088131^2 .

It is an emirp because it is prime and its reverse (733797261989999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 999989162797337 - 2¹² = 999989162793241 is a prime.

It is not a weakly prime, because it can be changed into another prime (999989162791337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499994581398668 + 499994581398669.

It is an arithmetic number, because the mean of its divisors is an integer number (499994581398669).

Almost surely, 2^{999989162797337} is an apocalyptic number.

It is an amenable number.

999989162797337 is a deficient number, since it is larger than the sum of its proper divisors (1).

999989162797337 is an equidigital number, since it uses as much as digits as its factorization.

999989162797337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 157493603232, while the sum is 98.

The spelling of 999989162797337 in words is "nine hundred ninety-nine trillion, nine hundred eighty-nine billion, one hundred sixty-two million, seven hundred ninety-seven thousand, three hundred thirty-seven".