9381151873 has 2 divisors, whose sum is σ = 9381151874. Its totient is φ = 9381151872.

The previous prime is 9381151849. The next prime is 9381151891. The reversal of 9381151873 is 3781511839.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7326161649 + 2054990224 = 85593^2 + 45332^2 .

It is a cyclic number.

It is not a de Polignac number, because 9381151873 - 2²⁹ = 8844280961 is a prime.

It is not a weakly prime, because it can be changed into another prime (9381152873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4690575936 + 4690575937.

It is an arithmetic number, because the mean of its divisors is an integer number (4690575937).

Almost surely, 2^9381151873 is an apocalyptic number.

It is an amenable number.

9381151873 is a deficient number, since it is larger than the sum of its proper divisors (1).

9381151873 is an equidigital number, since it uses as much as digits as its factorization.

9381151873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 46.

The square root of 9381151873 is about 96856.3465809030. The cubic root of 9381151873 is about 2109.0427793535.

The spelling of 9381151873 in words is "nine billion, three hundred eighty-one million, one hundred fifty-one thousand, eight hundred seventy-three".