812000415994 has 8 divisors (see below), whose sum is σ = 1218088424160. Its totient is φ = 405970941276.

The previous prime is 812000415991. The next prime is 812000416021. The reversal of 812000415994 is 499514000218.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 812000415994.

It is not an unprimeable number, because it can be changed into a prime (812000415991) 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, 14598664 + ... + 14654179.

It is an arithmetic number, because the mean of its divisors is an integer number (152261053020).

Almost surely, 2^812000415994 is an apocalyptic number.

812000415994 is a deficient number, since it is larger than the sum of its proper divisors (406088008166).

812000415994 is a wasteful number, since it uses less digits than its factorization.

812000415994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29266724.

The product of its (nonzero) digits is 103680, while the sum is 43.

The spelling of 812000415994 in words is "eight hundred twelve billion, four hundred fifteen thousand, nine hundred ninety-four".