743354899999491 has 24 divisors (see below), whose sum is σ = 1090840326671856. Its totient is φ = 449950002503040.

The previous prime is 743354899999487. The next prime is 743354899999549. The reversal of 743354899999491 is 194999998453347.

It is not a de Polignac number, because 743354899999491 - 2² = 743354899999487 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 743354899999395 and 743354899999404.

It is not an unprimeable number, because it can be changed into a prime (743354899989491) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12017864440 + ... + 12017926293.

It is an arithmetic number, because the mean of its divisors is an integer number (45451680277994).

Almost surely, 2^{743354899999491} is an apocalyptic number.

743354899999491 is a deficient number, since it is larger than the sum of its proper divisors (347485426672365).

743354899999491 is a wasteful number, since it uses less digits than its factorization.

743354899999491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24035790823 (or 24035790810 counting only the distinct ones).

The product of its digits is 85710804480, while the sum is 93.

The spelling of 743354899999491 in words is "seven hundred forty-three trillion, three hundred fifty-four billion, eight hundred ninety-nine million, nine hundred ninety-nine thousand, four hundred ninety-one".