84106827980 has 24 divisors (see below), whose sum is σ = 201856387488. Its totient is φ = 28836626688.

The previous prime is 84106827953. The next prime is 84106827989. The reversal of 84106827980 is 8972860148.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (84106827989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300381389 + ... + 300381668.

It is an arithmetic number, because the mean of its divisors is an integer number (8410682812).

Almost surely, 2^84106827980 is an apocalyptic number.

It is an amenable number.

84106827980 is an abundant number, since it is smaller than the sum of its proper divisors (117749559508).

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

84106827980 is a wasteful number, since it uses less digits than its factorization.

84106827980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600763073 (or 600763071 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 53.

The spelling of 84106827980 in words is "eighty-four billion, one hundred six million, eight hundred twenty-seven thousand, nine hundred eighty".