84426766830 has 128 divisors (see below), whose sum is σ = 257388595200. Its totient is φ = 19290949632.

The previous prime is 84426766807. The next prime is 84426766873. The reversal of 84426766830 is 3866762448.

84426766830 is a `hidden beast` number, since 8 + 442 + 67 + 66 + 83 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7446606 + ... + 7457934.

It is an arithmetic number, because the mean of its divisors is an integer number (2010848400).

Almost surely, 2^84426766830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84426766830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128694297600).

84426766830 is an abundant number, since it is smaller than the sum of its proper divisors (172961828370).

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

84426766830 is a wasteful number, since it uses less digits than its factorization.

84426766830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15295 (or 15289 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 54.

The spelling of 84426766830 in words is "eighty-four billion, four hundred twenty-six million, seven hundred sixty-six thousand, eight hundred thirty".