84219505900 has 36 divisors (see below), whose sum is σ = 182769005160. Its totient is φ = 33685465600.

The previous prime is 84219505891. The next prime is 84219505919. The reversal of 84219505900 is 950591248.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2572635 + ... + 2605165.

It is an arithmetic number, because the mean of its divisors is an integer number (5076916810).

Almost surely, 2^84219505900 is an apocalyptic number.

It is an amenable number.

84219505900 is an abundant number, since it is smaller than the sum of its proper divisors (98549499260).

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

84219505900 is a wasteful number, since it uses less digits than its factorization.

84219505900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58434 (or 58427 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 43.

The spelling of 84219505900 in words is "eighty-four billion, two hundred nineteen million, five hundred five thousand, nine hundred".