7844765964 has 96 divisors (see below), whose sum is σ = 21187353600. Its totient is φ = 2212839168.

The previous prime is 7844765941. The next prime is 7844765983. The reversal of 7844765964 is 4695674487.

It is a junction number, because it is equal to n+sod(n) for n = 7844765898 and 7844765907.

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, 2163457 + ... + 2167079.

It is an arithmetic number, because the mean of its divisors is an integer number (220701600).

Almost surely, 2^7844765964 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 7844765964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10593676800).

7844765964 is an abundant number, since it is smaller than the sum of its proper divisors (13342587636).

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

7844765964 is a wasteful number, since it uses less digits than its factorization.

7844765964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3959 (or 3957 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 60.

The square root of 7844765964 is about 88570.6834341928. The cubic root of 7844765964 is about 1986.9792442549.

The spelling of 7844765964 in words is "seven billion, eight hundred forty-four million, seven hundred sixty-five thousand, nine hundred sixty-four".