7845857130 has 64 divisors (see below), whose sum is σ = 19147622400. Its totient is φ = 2057106240.

The previous prime is 7845857087. The next prime is 7845857147. The reversal of 7845857130 is 317585487.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 7845857130.

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, 802411 + ... + 812129.

It is an arithmetic number, because the mean of its divisors is an integer number (299181600).

Almost surely, 2^7845857130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7845857130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9573811200).

7845857130 is an abundant number, since it is smaller than the sum of its proper divisors (11301765270).

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

7845857130 is a wasteful number, since it uses less digits than its factorization.

7845857130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10179.

The product of its (nonzero) digits is 940800, while the sum is 48.

The square root of 7845857130 is about 88576.8430798931. The cubic root of 7845857130 is about 1987.0713661311.

The spelling of 7845857130 in words is "seven billion, eight hundred forty-five million, eight hundred fifty-seven thousand, one hundred thirty".