998962910641 has 2 divisors, whose sum is σ = 998962910642. Its totient is φ = 998962910640.

The previous prime is 998962910639. The next prime is 998962910653. The reversal of 998962910641 is 146019269899.

998962910641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 966526900641 + 32436010000 = 983121^2 + 180100^2 .

It is a cyclic number.

It is not a de Polignac number, because 998962910641 - 2¹ = 998962910639 is a prime.

Together with 998962910639, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (998962940641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499481455320 + 499481455321.

It is an arithmetic number, because the mean of its divisors is an integer number (499481455321).

Almost surely, 2^998962910641 is an apocalyptic number.

It is an amenable number.

998962910641 is a deficient number, since it is larger than the sum of its proper divisors (1).

998962910641 is an equidigital number, since it uses as much as digits as its factorization.

998962910641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15116544, while the sum is 64.

The spelling of 998962910641 in words is "nine hundred ninety-eight billion, nine hundred sixty-two million, nine hundred ten thousand, six hundred forty-one".