7285866120 has 192 divisors, whose sum is σ = 27000857520. Its totient is φ = 1687928832.

The previous prime is 7285866079. The next prime is 7285866131. The reversal of 7285866120 is 216685827.

7285866120 is a `hidden beast` number, since 7 + 2 + 8 + 586 + 61 + 2 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 1247643684 + 6038222436 = 35322^2 + 77706^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 33772 + ... + 125348.

Almost surely, 2^7285866120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7285866120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13500428760).

7285866120 is an abundant number, since it is smaller than the sum of its proper divisors (19714991400).

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

7285866120 is a wasteful number, since it uses less digits than its factorization.

7285866120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91624 (or 91617 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 7285866120 is about 85357.2851020931. The cubic root of 7285866120 is about 1938.6246424914.

The spelling of 7285866120 in words is "seven billion, two hundred eighty-five million, eight hundred sixty-six thousand, one hundred twenty".