812385245064 has 16 divisors (see below), whose sum is σ = 2030963112720. Its totient is φ = 270795081680.

The previous prime is 812385245047. The next prime is 812385245081. The reversal of 812385245064 is 460542583218.

It is an interprime number because it is at equal distance from previous prime (812385245047) and next prime (812385245081).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16924692582 + ... + 16924692629.

It is an arithmetic number, because the mean of its divisors is an integer number (126935194545).

Almost surely, 2^812385245064 is an apocalyptic number.

It is an amenable number.

812385245064 is an abundant number, since it is smaller than the sum of its proper divisors (1218577867656).

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

812385245064 is a wasteful number, since it uses less digits than its factorization.

812385245064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33849385220 (or 33849385216 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 48.

The spelling of 812385245064 in words is "eight hundred twelve billion, three hundred eighty-five million, two hundred forty-five thousand, sixty-four".