822820849872 has 40 divisors (see below), whose sum is σ = 2429280605376. Its totient is φ = 235091671296.

The previous prime is 822820849859. The next prime is 822820849901. The reversal of 822820849872 is 278948028228.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1224435453 + ... + 1224436124.

Almost surely, 2^822820849872 is an apocalyptic number.

It is an amenable number.

822820849872 is an abundant number, since it is smaller than the sum of its proper divisors (1606459755504).

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

822820849872 is a wasteful number, since it uses less digits than its factorization.

822820849872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2448871595 (or 2448871589 counting only the distinct ones).

The product of its (nonzero) digits is 16515072, while the sum is 60.

The spelling of 822820849872 in words is "eight hundred twenty-two billion, eight hundred twenty million, eight hundred forty-nine thousand, eight hundred seventy-two".