998962910653 has 2 divisors, whose sum is σ = 998962910654. Its totient is φ = 998962910652.

The previous prime is 998962910641. The next prime is 998962910707. The reversal of 998962910653 is 356019269899.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 992609704804 + 6353205849 = 996298^2 + 79707^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-998962910653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (998962910633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499481455326 + 499481455327.

It is an arithmetic number, because the mean of its divisors is an integer number (499481455327).

Almost surely, 2^998962910653 is an apocalyptic number.

It is an amenable number.

998962910653 is a deficient number, since it is larger than the sum of its proper divisors (1).

998962910653 is an equidigital number, since it uses as much as digits as its factorization.

998962910653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56687040, while the sum is 67.

The spelling of 998962910653 in words is "nine hundred ninety-eight billion, nine hundred sixty-two million, nine hundred ten thousand, six hundred fifty-three".