1099035494989 has 2 divisors, whose sum is σ = 1099035494990. Its totient is φ = 1099035494988.

The previous prime is 1099035494959. The next prime is 1099035495007. The reversal of 1099035494989 is 9894945309901.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1079400479364 + 19635015625 = 1038942^2 + 140125^2 .

It is a cyclic number.

It is not a de Polignac number, because 1099035494989 - 2⁹ = 1099035494477 is a prime.

It is a super-2 number, since 2×1099035494989² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1099035494959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549517747494 + 549517747495.

It is an arithmetic number, because the mean of its divisors is an integer number (549517747495).

Almost surely, 2^{1099035494989} is an apocalyptic number.

It is an amenable number.

1099035494989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1099035494989 is an equidigital number, since it uses as much as digits as its factorization.

1099035494989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113374080, while the sum is 70.

The spelling of 1099035494989 in words is "one trillion, ninety-nine billion, thirty-five million, four hundred ninety-four thousand, nine hundred eighty-nine".