806408868019 has 12 divisors (see below), whose sum is σ = 851145227856. Its totient is φ = 763912466928.

The previous prime is 806408867977. The next prime is 806408868037. The reversal of 806408868019 is 910868804608.

It is not a de Polignac number, because 806408868019 - 2³⁵ = 772049129651 is a prime.

It is a super-2 number, since 2×806408868019² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (806408868319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5623242 + ... + 5764864.

It is an arithmetic number, because the mean of its divisors is an integer number (70928768988).

Almost surely, 2^806408868019 is an apocalyptic number.

806408868019 is a deficient number, since it is larger than the sum of its proper divisors (44736359837).

806408868019 is a wasteful number, since it uses less digits than its factorization.

806408868019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157434 (or 157415 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 58.

The spelling of 806408868019 in words is "eight hundred six billion, four hundred eight million, eight hundred sixty-eight thousand, nineteen".