809286641029 has 4 divisors (see below), whose sum is σ = 814646155360. Its totient is φ = 803927126700.

The previous prime is 809286640979. The next prime is 809286641057. The reversal of 809286641029 is 920146682908.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 809286641029 - 2⁷ = 809286640901 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 (809286648029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2679756939 + ... + 2679757240.

It is an arithmetic number, because the mean of its divisors is an integer number (203661538840).

Almost surely, 2^809286641029 is an apocalyptic number.

It is an amenable number.

809286641029 is a deficient number, since it is larger than the sum of its proper divisors (5359514331).

809286641029 is a wasteful number, since it uses less digits than its factorization.

809286641029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5359514330.

The product of its (nonzero) digits is 2985984, while the sum is 55.

The spelling of 809286641029 in words is "eight hundred nine billion, two hundred eighty-six million, six hundred forty-one thousand, twenty-nine".