84884266820 has 48 divisors (see below), whose sum is σ = 181664704368. Its totient is φ = 33304926720.

The previous prime is 84884266813. The next prime is 84884266837. The reversal of 84884266820 is 2866248848.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 125260864 + 84759005956 = 11192^2 + 291134^2 .

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

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, 6163382 + ... + 6177138.

It is an arithmetic number, because the mean of its divisors is an integer number (3784681341).

Almost surely, 2^84884266820 is an apocalyptic number.

It is an amenable number.

84884266820 is an abundant number, since it is smaller than the sum of its proper divisors (96780437548).

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

84884266820 is a wasteful number, since it uses less digits than its factorization.

84884266820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19640 (or 19638 counting only the distinct ones).

The product of its (nonzero) digits is 9437184, while the sum is 56.

The spelling of 84884266820 in words is "eighty-four billion, eight hundred eighty-four million, two hundred sixty-six thousand, eight hundred twenty".