84650219766 has 96 divisors (see below), whose sum is σ = 216697248768. Its totient is φ = 23379632640.

The previous prime is 84650219761. The next prime is 84650219783. The reversal of 84650219766 is 66791205648.

84650219766 is a `hidden beast` number, since 8 + 46 + 502 + 1 + 97 + 6 + 6 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84650219761) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 445011 + ... + 606081.

It is an arithmetic number, because the mean of its divisors is an integer number (2257263008).

Almost surely, 2^84650219766 is an apocalyptic number.

84650219766 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 84650219766, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108348624384).

84650219766 is an abundant number, since it is smaller than the sum of its proper divisors (132047029002).

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

84650219766 is a wasteful number, since it uses less digits than its factorization.

84650219766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161226 (or 161223 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 84650219766 in words is "eighty-four billion, six hundred fifty million, two hundred nineteen thousand, seven hundred sixty-six".