1408408877549 has 2 divisors, whose sum is σ = 1408408877550. Its totient is φ = 1408408877548.

The previous prime is 1408408877539. The next prime is 1408408877573. The reversal of 1408408877549 is 9457788048041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 711860063524 + 696548814025 = 843718^2 + 834595^2 .

It is an emirp because it is prime and its reverse (9457788048041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1408408877549 - 2²⁰ = 1408407828973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1408408877539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 704204438774 + 704204438775.

It is an arithmetic number, because the mean of its divisors is an integer number (704204438775).

Almost surely, 2^{1408408877549} is an apocalyptic number.

It is an amenable number.

1408408877549 is a deficient number, since it is larger than the sum of its proper divisors (1).

1408408877549 is an equidigital number, since it uses as much as digits as its factorization.

1408408877549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72253440, while the sum is 65.

The spelling of 1408408877549 in words is "one trillion, four hundred eight billion, four hundred eight million, eight hundred seventy-seven thousand, five hundred forty-nine".