11331734491 has 16 divisors (see below), whose sum is σ = 14267766528. Its totient is φ = 8742492000.

The previous prime is 11331734471. The next prime is 11331734497. The reversal of 11331734491 is 19443713311.

It is a happy number.

It is not a de Polignac number, because 11331734491 - 2⁷ = 11331734363 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11331734491.

It is not an unprimeable number, because it can be changed into a prime (11331734497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 720765 + ... + 736318.

It is an arithmetic number, because the mean of its divisors is an integer number (891735408).

Almost surely, 2^11331734491 is an apocalyptic number.

11331734491 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11331734491 is a deficient number, since it is larger than the sum of its proper divisors (2936032037).

11331734491 is a wasteful number, since it uses less digits than its factorization.

11331734491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457202.

The product of its digits is 27216, while the sum is 37.

The spelling of 11331734491 in words is "eleven billion, three hundred thirty-one million, seven hundred thirty-four thousand, four hundred ninety-one".