819314844047 has 48 divisors (see below), whose sum is σ = 968143176000. Its totient is φ = 691268981760.

The previous prime is 819314843903. The next prime is 819314844053. The reversal of 819314844047 is 740448413918.

It is not a de Polignac number, because 819314844047 - 2¹⁰ = 819314843023 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 819314844047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (819314844077) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 812006279 + ... + 812007287.

It is an arithmetic number, because the mean of its divisors is an integer number (20169649500).

Almost surely, 2^819314844047 is an apocalyptic number.

819314844047 is a deficient number, since it is larger than the sum of its proper divisors (148828331953).

819314844047 is a wasteful number, since it uses less digits than its factorization.

819314844047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936 (or 1929 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 53.

The spelling of 819314844047 in words is "eight hundred nineteen billion, three hundred fourteen million, eight hundred forty-four thousand, forty-seven".