809296402749 has 8 divisors (see below), whose sum is σ = 1080601191072. Its totient is φ = 538761274800.

The previous prime is 809296402741. The next prime is 809296402793. The reversal of 809296402749 is 947204692908.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 809296402749 - 2³ = 809296402741 is a prime.

It is a super-2 number, since 2×809296402749² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 809296402692 and 809296402701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (809296402741) 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 7 ways as a sum of consecutive naturals, for example, 192412639 + ... + 192416844.

It is an arithmetic number, because the mean of its divisors is an integer number (135075148884).

Almost surely, 2^809296402749 is an apocalyptic number.

It is an amenable number.

809296402749 is a deficient number, since it is larger than the sum of its proper divisors (271304788323).

809296402749 is a wasteful number, since it uses less digits than its factorization.

809296402749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384830187.

The product of its (nonzero) digits is 15676416, while the sum is 60.

The spelling of 809296402749 in words is "eight hundred nine billion, two hundred ninety-six million, four hundred two thousand, seven hundred forty-nine".