84234474720 has 768 divisors, whose sum is σ = 334801797120. Its totient is φ = 19595520000.

The previous prime is 84234474719. The next prime is 84234474757. The reversal of 84234474720 is 2747443248.

84234474720 is a `hidden beast` number, since 84 + 2 + 34 + 474 + 72 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 310828185 + ... + 310828455.

It is an arithmetic number, because the mean of its divisors is an integer number (435939840).

Almost surely, 2^84234474720 is an apocalyptic number.

84234474720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84234474720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167400898560).

84234474720 is an abundant number, since it is smaller than the sum of its proper divisors (250567322400).

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

84234474720 is a wasteful number, since it uses less digits than its factorization.

84234474720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548 (or 534 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 45.

The spelling of 84234474720 in words is "eighty-four billion, two hundred thirty-four million, four hundred seventy-four thousand, seven hundred twenty".