491113429429 has 16 divisors (see below), whose sum is σ = 571957862400. Its totient is φ = 412969647024.

The previous prime is 491113429399. The next prime is 491113429439. The reversal of 491113429429 is 924924311194.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-491113429429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491113429439) 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, 1019749 + ... + 1422010.

It is an arithmetic number, because the mean of its divisors is an integer number (35747366400).

Almost surely, 2^491113429429 is an apocalyptic number.

It is an amenable number.

491113429429 is a deficient number, since it is larger than the sum of its proper divisors (80844432971).

491113429429 is a wasteful number, since it uses less digits than its factorization.

491113429429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2442312.

The product of its digits is 559872, while the sum is 49.

The spelling of 491113429429 in words is "four hundred ninety-one billion, one hundred thirteen million, four hundred twenty-nine thousand, four hundred twenty-nine".