1449691149749 has 2 divisors, whose sum is σ = 1449691149750. Its totient is φ = 1449691149748.

The previous prime is 1449691149733. The next prime is 1449691149859. The reversal of 1449691149749 is 9479411969441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1157599542724 + 292091607025 = 1075918^2 + 540455^2 .

It is a cyclic number.

It is not a de Polignac number, because 1449691149749 - 2⁴ = 1449691149733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1449691109749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 724845574874 + 724845574875.

It is an arithmetic number, because the mean of its divisors is an integer number (724845574875).

Almost surely, 2^{1449691149749} is an apocalyptic number.

It is an amenable number.

1449691149749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1449691149749 is an equidigital number, since it uses as much as digits as its factorization.

1449691149749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70543872, while the sum is 68.

The spelling of 1449691149749 in words is "one trillion, four hundred forty-nine billion, six hundred ninety-one million, one hundred forty-nine thousand, seven hundred forty-nine".