812034499320 has 576 divisors, whose sum is σ = 3048788302560. Its totient is φ = 187066091520.

The previous prime is 812034499273. The next prime is 812034499333. The reversal of 812034499320 is 23994430218.

812034499320 is a `hidden beast` number, since 8 + 120 + 3 + 4 + 499 + 32 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 69298102 + ... + 69309818.

Almost surely, 2^812034499320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 812034499320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1524394151280).

812034499320 is an abundant number, since it is smaller than the sum of its proper divisors (2236753803240).

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

812034499320 is a wasteful number, since it uses less digits than its factorization.

812034499320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11836 (or 11818 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 812034499320 in words is "eight hundred twelve billion, thirty-four million, four hundred ninety-nine thousand, three hundred twenty".