1149901026427 has 2 divisors, whose sum is σ = 1149901026428. Its totient is φ = 1149901026426.

The previous prime is 1149901026419. The next prime is 1149901026437. The reversal of 1149901026427 is 7246201099411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1149901026427 - 2³ = 1149901026419 is a prime.

It is not a weakly prime, because it can be changed into another prime (1149901026437) 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, 574950513213 + 574950513214.

It is an arithmetic number, because the mean of its divisors is an integer number (574950513214).

Almost surely, 2^{1149901026427} is an apocalyptic number.

1149901026427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1149901026427 is an equidigital number, since it uses as much as digits as its factorization.

1149901026427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 1149901026427 in words is "one trillion, one hundred forty-nine billion, nine hundred one million, twenty-six thousand, four hundred twenty-seven".