9975398353 has 2 divisors, whose sum is σ = 9975398354. Its totient is φ = 9975398352.

The previous prime is 9975398351. The next prime is 9975398371. The reversal of 9975398353 is 3538935799.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6549988624 + 3425409729 = 80932^2 + 58527^2 .

It is a cyclic number.

It is not a de Polignac number, because 9975398353 - 2¹ = 9975398351 is a prime.

It is a super-2 number, since 2×9975398353² (a number of 21 digits) contains 22 as substring.

Together with 9975398351, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 9975398291 and 9975398300.

It is not a weakly prime, because it can be changed into another prime (9975398351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4987699176 + 4987699177.

It is an arithmetic number, because the mean of its divisors is an integer number (4987699177).

Almost surely, 2^9975398353 is an apocalyptic number.

It is an amenable number.

9975398353 is a deficient number, since it is larger than the sum of its proper divisors (1).

9975398353 is an equidigital number, since it uses as much as digits as its factorization.

9975398353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27556200, while the sum is 61.

The square root of 9975398353 is about 99876.9160166652. The cubic root of 9975398353 is about 2152.6664844883. Note that the first 3 decimals are identical.

The spelling of 9975398353 in words is "nine billion, nine hundred seventy-five million, three hundred ninety-eight thousand, three hundred fifty-three".