812708551200 has 1728 divisors, whose sum is σ = 3581793250560. Its totient is φ = 158162780160.

The previous prime is 812708551199. The next prime is 812708551271. The reversal of 812708551200 is 2155807218.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 1019709202 + ... + 1019709998.

It is an arithmetic number, because the mean of its divisors is an integer number (2072797020).

Almost surely, 2^812708551200 is an apocalyptic number.

812708551200 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 812708551200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1790896625280).

812708551200 is an abundant number, since it is smaller than the sum of its proper divisors (2769084699360).

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

812708551200 is a wasteful number, since it uses less digits than its factorization.

812708551200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899 (or 879 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 39.

The spelling of 812708551200 in words is "eight hundred twelve billion, seven hundred eight million, five hundred fifty-one thousand, two hundred".