7845476868 has 72 divisors (see below), whose sum is σ = 20061601560. Its totient is φ = 2584949760.

The previous prime is 7845476867. The next prime is 7845476909. The reversal of 7845476868 is 8686745487.

7845476868 is a `hidden beast` number, since 7 + 8 + 4 + 547 + 6 + 86 + 8 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 31270464 + 7814206404 = 5592^2 + 88398^2 .

It is not an unprimeable number, because it can be changed into a prime (7845476861) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1806796 + ... + 1811132.

It is an arithmetic number, because the mean of its divisors is an integer number (278633355).

Almost surely, 2^7845476868 is an apocalyptic number.

It is an amenable number.

7845476868 is an abundant number, since it is smaller than the sum of its proper divisors (12216124692).

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

7845476868 is a wasteful number, since it uses less digits than its factorization.

7845476868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4917 (or 4912 counting only the distinct ones).

The product of its digits is 72253440, while the sum is 63.

The square root of 7845476868 is about 88574.6965447808. The cubic root of 7845476868 is about 1987.0392634164.

The spelling of 7845476868 in words is "seven billion, eight hundred forty-five million, four hundred seventy-six thousand, eight hundred sixty-eight".