398826082453 has 2 divisors, whose sum is σ = 398826082454. Its totient is φ = 398826082452.

The previous prime is 398826082451. The next prime is 398826082559. The reversal of 398826082453 is 354280628893.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 397603391364 + 1222691089 = 630558^2 + 34967^2 .

It is a cyclic number.

It is not a de Polignac number, because 398826082453 - 2¹ = 398826082451 is a prime.

Together with 398826082451, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (398826082451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199413041226 + 199413041227.

It is an arithmetic number, because the mean of its divisors is an integer number (199413041227).

Almost surely, 2^398826082453 is an apocalyptic number.

It is an amenable number.

398826082453 is a deficient number, since it is larger than the sum of its proper divisors (1).

398826082453 is an equidigital number, since it uses as much as digits as its factorization.

398826082453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19906560, while the sum is 58.

The spelling of 398826082453 in words is "three hundred ninety-eight billion, eight hundred twenty-six million, eighty-two thousand, four hundred fifty-three".