812887940896 has 96 divisors (see below), whose sum is σ = 1698020610048. Its totient is φ = 382292951040.

The previous prime is 812887940881. The next prime is 812887940923. The reversal of 812887940896 is 698049788218.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10523856 + ... + 10600816.

It is an arithmetic number, because the mean of its divisors is an integer number (17687714688).

Almost surely, 2^812887940896 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 812887940896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (849010305024).

812887940896 is an abundant number, since it is smaller than the sum of its proper divisors (885132669152).

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

812887940896 is a wasteful number, since it uses less digits than its factorization.

812887940896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77234 (or 77226 counting only the distinct ones).

The product of its (nonzero) digits is 111476736, while the sum is 70.

The spelling of 812887940896 in words is "eight hundred twelve billion, eight hundred eighty-seven million, nine hundred forty thousand, eight hundred ninety-six".