84518590650 has 192 divisors, whose sum is σ = 233621713920. Its totient is φ = 20080742400.

The previous prime is 84518590633. The next prime is 84518590693. The reversal of 84518590650 is 5609581548.

It is a junction number, because it is equal to n+sod(n) for n = 84518590593 and 84518590602.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 26173236 + ... + 26176464.

It is an arithmetic number, because the mean of its divisors is an integer number (1216779760).

Almost surely, 2^84518590650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84518590650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116810856960).

84518590650 is an abundant number, since it is smaller than the sum of its proper divisors (149103123270).

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

84518590650 is a wasteful number, since it uses less digits than its factorization.

84518590650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3721 (or 3716 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 51.

The spelling of 84518590650 in words is "eighty-four billion, five hundred eighteen million, five hundred ninety thousand, six hundred fifty".