9894591058841 has 2 divisors, whose sum is σ = 9894591058842. Its totient is φ = 9894591058840.

The previous prime is 9894591058831. The next prime is 9894591058901. The reversal of 9894591058841 is 1488501954989.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9036661258816 + 857929800025 = 3006104^2 + 926245^2 .

It is a cyclic number.

It is not a de Polignac number, because 9894591058841 - 2⁶ = 9894591058777 is a prime.

It is a super-3 number, since 3×9894591058841³ (a number of 40 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (9894591058811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4947295529420 + 4947295529421.

It is an arithmetic number, because the mean of its divisors is an integer number (4947295529421).

Almost surely, 2^{9894591058841} is an apocalyptic number.

It is an amenable number.

9894591058841 is a deficient number, since it is larger than the sum of its proper divisors (1).

9894591058841 is an equidigital number, since it uses as much as digits as its factorization.

9894591058841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 149299200, while the sum is 71.

The spelling of 9894591058841 in words is "nine trillion, eight hundred ninety-four billion, five hundred ninety-one million, fifty-eight thousand, eight hundred forty-one".