9953949289 has 2 divisors, whose sum is σ = 9953949290. Its totient is φ = 9953949288.

The previous prime is 9953949287. The next prime is 9953949337. The reversal of 9953949289 is 9829493599.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5108675625 + 4845273664 = 71475^2 + 69608^2 .

It is a cyclic number.

It is not a de Polignac number, because 9953949289 - 2¹ = 9953949287 is a prime.

It is a super-2 number, since 2×9953949289² (a number of 21 digits) contains 22 as substring.

Together with 9953949287, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (9953949287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4976974644 + 4976974645.

It is an arithmetic number, because the mean of its divisors is an integer number (4976974645).

Almost surely, 2^9953949289 is an apocalyptic number.

It is an amenable number.

9953949289 is a deficient number, since it is larger than the sum of its proper divisors (1).

9953949289 is an equidigital number, since it uses as much as digits as its factorization.

9953949289 is an evil number, because the sum of its binary digits is even.

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

The square root of 9953949289 is about 99769.4807493755. The cubic root of 9953949289 is about 2151.1224922054.

The spelling of 9953949289 in words is "nine billion, nine hundred fifty-three million, nine hundred forty-nine thousand, two hundred eighty-nine".