84821894808 has 64 divisors (see below), whose sum is σ = 256604060160. Its totient is φ = 22809248256.

The previous prime is 84821894771. The next prime is 84821894821. The reversal of 84821894808 is 80849812848.

It is a congruent number.

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, 14846916 + ... + 14852627.

It is an arithmetic number, because the mean of its divisors is an integer number (4009438440).

Almost surely, 2^84821894808 is an apocalyptic number.

It is an amenable number.

84821894808 is an abundant number, since it is smaller than the sum of its proper divisors (171782165352).

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

84821894808 is a wasteful number, since it uses less digits than its factorization.

84821894808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29699576 (or 29699572 counting only the distinct ones).

The product of its (nonzero) digits is 9437184, while the sum is 60.

The spelling of 84821894808 in words is "eighty-four billion, eight hundred twenty-one million, eight hundred ninety-four thousand, eight hundred eight".