84502686820 has 24 divisors (see below), whose sum is σ = 177484132224. Its totient is φ = 33795648096.

The previous prime is 84502686817. The next prime is 84502686857. The reversal of 84502686820 is 2868620548.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210282 + ... + 461761.

It is an arithmetic number, because the mean of its divisors is an integer number (7395172176).

Almost surely, 2^84502686820 is an apocalyptic number.

It is an amenable number.

84502686820 is an abundant number, since it is smaller than the sum of its proper divisors (92981445404).

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

84502686820 is a wasteful number, since it uses less digits than its factorization.

84502686820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678339 (or 678337 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 49.

The spelling of 84502686820 in words is "eighty-four billion, five hundred two million, six hundred eighty-six thousand, eight hundred twenty".