7845591964 has 24 divisors (see below), whose sum is σ = 15694289408. Its totient is φ = 3361731120.

The previous prime is 7845591931. The next prime is 7845591973. The reversal of 7845591964 is 4691955487.

It is a junction number, because it is equal to n+sod(n) for n = 7845591899 and 7845591908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132529 + ... + 182359.

Almost surely, 2^7845591964 is an apocalyptic number.

It is an amenable number.

7845591964 is an abundant number, since it is smaller than the sum of its proper divisors (7848697444).

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

7845591964 is a wasteful number, since it uses less digits than its factorization.

7845591964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55465 (or 55463 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 58.

The square root of 7845591964 is about 88575.3462539097. The cubic root of 7845591964 is about 1987.0489802319.

The spelling of 7845591964 in words is "seven billion, eight hundred forty-five million, five hundred ninety-one thousand, nine hundred sixty-four".