7845555488 has 48 divisors (see below), whose sum is σ = 16423223040. Its totient is φ = 3676517376.

The previous prime is 7845555479. The next prime is 7845555521. The reversal of 7845555488 is 8845555487.

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, 99845 + ... + 160187.

It is an arithmetic number, because the mean of its divisors is an integer number (342150480).

Almost surely, 2^7845555488 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 7845555488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8211611520).

7845555488 is an abundant number, since it is smaller than the sum of its proper divisors (8577667552).

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

7845555488 is a wasteful number, since it uses less digits than its factorization.

7845555488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60609 (or 60601 counting only the distinct ones).

The product of its digits is 35840000, while the sum is 59.

The square root of 7845555488 is about 88575.1403498747. The cubic root of 7845555488 is about 1987.0459008079.

Subtracting 7845555488 from its reverse (8845555487), we obtain a palindrome (999999999).

The spelling of 7845555488 in words is "seven billion, eight hundred forty-five million, five hundred fifty-five thousand, four hundred eighty-eight".