9851045761 has 2 divisors, whose sum is σ = 9851045762. Its totient is φ = 9851045760.

The previous prime is 9851045717. The next prime is 9851045773. The reversal of 9851045761 is 1675401589.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9494553600 + 356492161 = 97440^2 + 18881^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9851045761 is a prime.

It is not a weakly prime, because it can be changed into another prime (9851045791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4925522880 + 4925522881.

It is an arithmetic number, because the mean of its divisors is an integer number (4925522881).

Almost surely, 2^9851045761 is an apocalyptic number.

It is an amenable number.

9851045761 is a deficient number, since it is larger than the sum of its proper divisors (1).

9851045761 is an equidigital number, since it uses as much as digits as its factorization.

9851045761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 302400, while the sum is 46.

The square root of 9851045761 is about 99252.4345343730. The cubic root of 9851045761 is about 2143.6840609660.

The spelling of 9851045761 in words is "nine billion, eight hundred fifty-one million, forty-five thousand, seven hundred sixty-one".