6822981990 has 48 divisors (see below), whose sum is σ = 19352460816. Its totient is φ = 1654056000.

The previous prime is 6822981967. The next prime is 6822982007. The reversal of 6822981990 is 991892286.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3444961 + ... + 3446940.

It is an arithmetic number, because the mean of its divisors is an integer number (403176267).

Almost surely, 2^6822981990 is an apocalyptic number.

6822981990 is an abundant number, since it is smaller than the sum of its proper divisors (12529478826).

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

6822981990 is a wasteful number, since it uses less digits than its factorization.

6822981990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6891925 (or 6891922 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The square root of 6822981990 is about 82601.3437542029. The cubic root of 6822981990 is about 1896.6683988413.

The spelling of 6822981990 in words is "six billion, eight hundred twenty-two million, nine hundred eighty-one thousand, nine hundred ninety".