1149449769641 has 2 divisors, whose sum is σ = 1149449769642. Its totient is φ = 1149449769640.

The previous prime is 1149449769623. The next prime is 1149449769653. The reversal of 1149449769641 is 1469679449411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1047816329641 + 101633440000 = 1023629^2 + 318800^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1149449769641 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1149449369641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 574724884820 + 574724884821.

It is an arithmetic number, because the mean of its divisors is an integer number (574724884821).

Almost surely, 2^{1149449769641} is an apocalyptic number.

It is an amenable number.

1149449769641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1149449769641 is an equidigital number, since it uses as much as digits as its factorization.

1149449769641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47029248, while the sum is 65.

The spelling of 1149449769641 in words is "one trillion, one hundred forty-nine billion, four hundred forty-nine million, seven hundred sixty-nine thousand, six hundred forty-one".