806403644452 has 48 divisors (see below), whose sum is σ = 1664030309760. Its totient is φ = 334746489600.

The previous prime is 806403644419. The next prime is 806403644477. The reversal of 806403644452 is 254446304608.

It is an unprimeable number.

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, 2367199 + ... + 2686342.

It is an arithmetic number, because the mean of its divisors is an integer number (34667298120).

Almost surely, 2^806403644452 is an apocalyptic number.

806403644452 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

806403644452 is an abundant number, since it is smaller than the sum of its proper divisors (857626665308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

806403644452 is a wasteful number, since it uses less digits than its factorization.

806403644452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5053732 (or 5053730 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 46.

The spelling of 806403644452 in words is "eight hundred six billion, four hundred three million, six hundred forty-four thousand, four hundred fifty-two".