9913056889 has 2 divisors, whose sum is σ = 9913056890. Its totient is φ = 9913056888.

The previous prime is 9913056887. The next prime is 9913056919. The reversal of 9913056889 is 9886503199.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5905154025 + 4007902864 = 76845^2 + 63308^2 .

It is an emirp because it is prime and its reverse (9886503199) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9913056889 - 2¹ = 9913056887 is a prime.

It is a super-3 number, since 3×9913056889³ (a number of 31 digits) contains 333 as substring.

Together with 9913056887, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (9913056883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4956528444 + 4956528445.

It is an arithmetic number, because the mean of its divisors is an integer number (4956528445).

Almost surely, 2^9913056889 is an apocalyptic number.

It is an amenable number.

9913056889 is a deficient number, since it is larger than the sum of its proper divisors (1).

9913056889 is an equidigital number, since it uses as much as digits as its factorization.

9913056889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4199040, while the sum is 58.

The square root of 9913056889 is about 99564.3354268987. The cubic root of 9913056889 is about 2148.1727318651.

The spelling of 9913056889 in words is "nine billion, nine hundred thirteen million, fifty-six thousand, eight hundred eighty-nine".