9900858953 has 2 divisors, whose sum is σ = 9900858954. Its totient is φ = 9900858952.

The previous prime is 9900858901. The next prime is 9900859043. The reversal of 9900858953 is 3598580099.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5659853824 + 4241005129 = 75232^2 + 65123^2 .

It is a cyclic number.

It is not a de Polignac number, because 9900858953 - 2⁶ = 9900858889 is a prime.

It is not a weakly prime, because it can be changed into another prime (9900818953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4950429476 + 4950429477.

It is an arithmetic number, because the mean of its divisors is an integer number (4950429477).

Almost surely, 2^9900858953 is an apocalyptic number.

It is an amenable number.

9900858953 is a deficient number, since it is larger than the sum of its proper divisors (1).

9900858953 is an equidigital number, since it uses as much as digits as its factorization.

9900858953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3499200, while the sum is 56.

The square root of 9900858953 is about 99503.0600182728. The cubic root of 9900858953 is about 2147.2912671872.

The spelling of 9900858953 in words is "nine billion, nine hundred million, eight hundred fifty-eight thousand, nine hundred fifty-three".