1291802242533 has 16 divisors (see below), whose sum is σ = 1881172531200. Its totient is φ = 781999012080.

The previous prime is 1291802242499. The next prime is 1291802242609. The reversal of 1291802242533 is 3352422081921.

It is not a de Polignac number, because 1291802242533 - 2¹³ = 1291802234341 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1291800242533) 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 in 15 ways as a sum of consecutive naturals, for example, 22757173 + ... + 22813866.

It is an arithmetic number, because the mean of its divisors is an integer number (117573283200).

Almost surely, 2^{1291802242533} is an apocalyptic number.

It is an amenable number.

1291802242533 is a deficient number, since it is larger than the sum of its proper divisors (589370288667).

1291802242533 is a wasteful number, since it uses less digits than its factorization.

1291802242533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45571912.

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 1291802242533 in words is "one trillion, two hundred ninety-one billion, eight hundred two million, two hundred forty-two thousand, five hundred thirty-three".