84283379856 has 135 divisors (see below), whose sum is σ = 255553781067. Its totient is φ = 25919412480.

The previous prime is 84283379813. The next prime is 84283379861. The reversal of 84283379856 is 65897338248.

The square root of 84283379856 is 290316.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 69791072400 + 14492307456 = 264180^2 + 120384^2 .

It is a junction number, because it is equal to n+sod(n) for n = 84283379793 and 84283379802.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 45288366 + ... + 45290226.

Almost surely, 2^84283379856 is an apocalyptic number.

84283379856 is the 290316-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84283379856

84283379856 is an abundant number, since it is smaller than the sum of its proper divisors (171270401211).

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

84283379856 is a wasteful number, since it uses less digits than its factorization.

84283379856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3762 (or 1879 counting only the distinct ones).

The product of its digits is 69672960, while the sum is 63.

The spelling of 84283379856 in words is "eighty-four billion, two hundred eighty-three million, three hundred seventy-nine thousand, eight hundred fifty-six".