1099842897547 has 2 divisors, whose sum is σ = 1099842897548. Its totient is φ = 1099842897546.

The previous prime is 1099842897521. The next prime is 1099842897653. The reversal of 1099842897547 is 7457982489901.

It is a weak prime.

It is an emirp because it is prime and its reverse (7457982489901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1099842897547 - 2¹⁵ = 1099842864779 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1099842897547.

It is not a weakly prime, because it can be changed into another prime (1099842897847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549921448773 + 549921448774.

It is an arithmetic number, because the mean of its divisors is an integer number (549921448774).

Almost surely, 2^{1099842897547} is an apocalyptic number.

1099842897547 is a deficient number, since it is larger than the sum of its proper divisors (1).

1099842897547 is an equidigital number, since it uses as much as digits as its factorization.

1099842897547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 365783040, while the sum is 73.

The spelling of 1099842897547 in words is "one trillion, ninety-nine billion, eight hundred forty-two million, eight hundred ninety-seven thousand, five hundred forty-seven".