1291553465084 has 12 divisors (see below), whose sum is σ = 2261649999000. Its totient is φ = 645367751088.

The previous prime is 1291553465071. The next prime is 1291553465101. The reversal of 1291553465084 is 4805643551921.

It is a super-2 number, since 2×1291553465084² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 102238259 + ... + 102250890.

It is an arithmetic number, because the mean of its divisors is an integer number (188470833250).

Almost surely, 2^{1291553465084} is an apocalyptic number.

It is an amenable number.

1291553465084 is a deficient number, since it is larger than the sum of its proper divisors (970096533916).

1291553465084 is a wasteful number, since it uses less digits than its factorization.

1291553465084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204490732 (or 204490730 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 53.

The spelling of 1291553465084 in words is "one trillion, two hundred ninety-one billion, five hundred fifty-three million, four hundred sixty-five thousand, eighty-four".