7449698573549 has 2 divisors, whose sum is σ = 7449698573550. Its totient is φ = 7449698573548.

The previous prime is 7449698573501. The next prime is 7449698573579. The reversal of 7449698573549 is 9453758969447.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4016156281225 + 3433542292324 = 2004035^2 + 1852982^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7449698573549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7449698573579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3724849286774 + 3724849286775.

It is an arithmetic number, because the mean of its divisors is an integer number (3724849286775).

Almost surely, 2^{7449698573549} is an apocalyptic number.

It is an amenable number.

7449698573549 is a deficient number, since it is larger than the sum of its proper divisors (1).

7449698573549 is an equidigital number, since it uses as much as digits as its factorization.

7449698573549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8230118400, while the sum is 80.

The spelling of 7449698573549 in words is "seven trillion, four hundred forty-nine billion, six hundred ninety-eight million, five hundred seventy-three thousand, five hundred forty-nine".