9919473061 has 2 divisors, whose sum is σ = 9919473062. Its totient is φ = 9919473060.

The previous prime is 9919473043. The next prime is 9919473071. The reversal of 9919473061 is 1603749199.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6790748836 + 3128724225 = 82406^2 + 55935^2 .

It is a cyclic number.

It is not a de Polignac number, because 9919473061 - 2¹³ = 9919464869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9919472996 and 9919473014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9919473001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4959736530 + 4959736531.

It is an arithmetic number, because the mean of its divisors is an integer number (4959736531).

Almost surely, 2^9919473061 is an apocalyptic number.

It is an amenable number.

9919473061 is a deficient number, since it is larger than the sum of its proper divisors (1).

9919473061 is an equidigital number, since it uses as much as digits as its factorization.

9919473061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 367416, while the sum is 49.

The square root of 9919473061 is about 99596.5514513429. The cubic root of 9919473061 is about 2148.6360962706.

The spelling of 9919473061 in words is "nine billion, nine hundred nineteen million, four hundred seventy-three thousand, sixty-one".