9251381097473 has 2 divisors, whose sum is σ = 9251381097474. Its totient is φ = 9251381097472.

The previous prime is 9251381097443. The next prime is 9251381097481. The reversal of 9251381097473 is 3747901831529.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5483034361744 + 3768346735729 = 2341588^2 + 1941223^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9251381097473 is a prime.

It is not a weakly prime, because it can be changed into another prime (9251381097443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4625690548736 + 4625690548737.

It is an arithmetic number, because the mean of its divisors is an integer number (4625690548737).

Almost surely, 2^{9251381097473} is an apocalyptic number.

It is an amenable number.

9251381097473 is a deficient number, since it is larger than the sum of its proper divisors (1).

9251381097473 is an equidigital number, since it uses as much as digits as its factorization.

9251381097473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11430720, while the sum is 59.

The spelling of 9251381097473 in words is "nine trillion, two hundred fifty-one billion, three hundred eighty-one million, ninety-seven thousand, four hundred seventy-three".