7845591963 has 18 divisors (see below), whose sum is σ = 11500696732. Its totient is φ = 4753881440.

The previous prime is 7845591931. The next prime is 7845591973. The reversal of 7845591963 is 3691955487.

It is not a de Polignac number, because 7845591963 - 2⁵ = 7845591931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7845591973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1685263 + ... + 1689911.

Almost surely, 2^7845591963 is an apocalyptic number.

7845591963 is a deficient number, since it is larger than the sum of its proper divisors (3655104769).

7845591963 is an frugal number, since it uses more digits than its factorization.

7845591963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9323 (or 4663 counting only the distinct ones).

The product of its digits is 8164800, while the sum is 57.

The square root of 7845591963 is about 88575.3462482648. The cubic root of 7845591963 is about 1987.0489801474.

The spelling of 7845591963 in words is "seven billion, eight hundred forty-five million, five hundred ninety-one thousand, nine hundred sixty-three".