1149551720263 has 2 divisors, whose sum is σ = 1149551720264. Its totient is φ = 1149551720262.

The previous prime is 1149551720257. The next prime is 1149551720287. The reversal of 1149551720263 is 3620271559411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1149551720263 - 2⁵ = 1149551720231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1149551720663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 574775860131 + 574775860132.

It is an arithmetic number, because the mean of its divisors is an integer number (574775860132).

Almost surely, 2^{1149551720263} is an apocalyptic number.

1149551720263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1149551720263 is an equidigital number, since it uses as much as digits as its factorization.

1149551720263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 453600, while the sum is 46.

The spelling of 1149551720263 in words is "one trillion, one hundred forty-nine billion, five hundred fifty-one million, seven hundred twenty thousand, two hundred sixty-three".