7765443216 has 160 divisors (see below), whose sum is σ = 23118163200. Its totient is φ = 2492743680.

The previous prime is 7765443193. The next prime is 7765443233. The reversal of 7765443216 is 6123445677.

7765443216 is a `hidden beast` number, since 7 + 76 + 544 + 32 + 1 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8029965 + ... + 8030931.

It is an arithmetic number, because the mean of its divisors is an integer number (144488520).

Almost surely, 2^7765443216 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 7765443216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11559081600).

7765443216 is an abundant number, since it is smaller than the sum of its proper divisors (15352719984).

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

7765443216 is a wasteful number, since it uses less digits than its factorization.

7765443216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1654 (or 1642 counting only the distinct ones).

The product of its digits is 846720, while the sum is 45.

The square root of 7765443216 is about 88121.7522295148. The cubic root of 7765443216 is about 1980.2593966857.

The spelling of 7765443216 in words is "seven billion, seven hundred sixty-five million, four hundred forty-three thousand, two hundred sixteen".