7804468640 has 24 divisors (see below), whose sum is σ = 18438057540. Its totient is φ = 3121787392.

The previous prime is 7804468631. The next prime is 7804468699. The reversal of 7804468640 is 468644087.

It can be written as a sum of positive squares in 2 ways, for example, as 6260607376 + 1543861264 = 79124^2 + 39292^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24388805 + ... + 24389124.

Almost surely, 2^7804468640 is an apocalyptic number.

It is an amenable number.

7804468640 is an abundant number, since it is smaller than the sum of its proper divisors (10633588900).

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

7804468640 is a wasteful number, since it uses less digits than its factorization.

7804468640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48777944 (or 48777936 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 47.

The square root of 7804468640 is about 88342.9037331239. The cubic root of 7804468640 is about 1983.5711357324.

The spelling of 7804468640 in words is "seven billion, eight hundred four million, four hundred sixty-eight thousand, six hundred forty".