9953948899 has 2 divisors, whose sum is σ = 9953948900. Its totient is φ = 9953948898.

The previous prime is 9953948891. The next prime is 9953948929. The reversal of 9953948899 is 9988493599.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9953948899 - 2³ = 9953948891 is a prime.

It is not a weakly prime, because it can be changed into another prime (9953948891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4976974449 + 4976974450.

It is an arithmetic number, because the mean of its divisors is an integer number (4976974450).

Almost surely, 2^9953948899 is an apocalyptic number.

9953948899 is a deficient number, since it is larger than the sum of its proper divisors (1).

9953948899 is an equidigital number, since it uses as much as digits as its factorization.

9953948899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 226748160, while the sum is 73.

The square root of 9953948899 is about 99769.4787948699. The cubic root of 9953948899 is about 2151.1224641114.

The spelling of 9953948899 in words is "nine billion, nine hundred fifty-three million, nine hundred forty-eight thousand, eight hundred ninety-nine".