822754876212 has 72 divisors (see below), whose sum is σ = 2138062768296. Its totient is φ = 266575567104.

The previous prime is 822754876211. The next prime is 822754876213. The reversal of 822754876212 is 212678457228.

It is a happy number.

822754876212 is a `hidden beast` number, since 8 + 2 + 2 + 7 + 5 + 4 + 8 + 7 + 621 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (822754876211) and next prime (822754876213).

It can be written as a sum of positive squares in 4 ways, for example, as 242028577296 + 580726298916 = 491964^2 + 762054^2 .

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (822754876211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1044438 + ... + 1654194.

Almost surely, 2^822754876212 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 822754876212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1069031384148).

822754876212 is an abundant number, since it is smaller than the sum of its proper divisors (1315307892084).

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

822754876212 is a wasteful number, since it uses less digits than its factorization.

822754876212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610817 (or 610812 counting only the distinct ones).

The product of its digits is 6021120, while the sum is 54.

The spelling of 822754876212 in words is "eight hundred twenty-two billion, seven hundred fifty-four million, eight hundred seventy-six thousand, two hundred twelve".