9954899873 has 2 divisors, whose sum is σ = 9954899874. Its totient is φ = 9954899872.

The previous prime is 9954899869. The next prime is 9954899963. The reversal of 9954899873 is 3789984599.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5217606289 + 4737293584 = 72233^2 + 68828^2 .

It is a cyclic number.

It is not a de Polignac number, because 9954899873 - 2² = 9954899869 is a prime.

It is a super-2 number, since 2×9954899873² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9954899797 and 9954899806.

It is not a weakly prime, because it can be changed into another prime (9954899833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4977449936 + 4977449937.

It is an arithmetic number, because the mean of its divisors is an integer number (4977449937).

Almost surely, 2^9954899873 is an apocalyptic number.

It is an amenable number.

9954899873 is a deficient number, since it is larger than the sum of its proper divisors (1).

9954899873 is an equidigital number, since it uses as much as digits as its factorization.

9954899873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 176359680, while the sum is 71.

The square root of 9954899873 is about 99774.2445373554. The cubic root of 9954899873 is about 2151.1909661171.

The spelling of 9954899873 in words is "nine billion, nine hundred fifty-four million, eight hundred ninety-nine thousand, eight hundred seventy-three".