7883740840 has 72 divisors (see below), whose sum is σ = 18045601470. Its totient is φ = 3099811200.

The previous prime is 7883740829. The next prime is 7883740859. The reversal of 7883740840 is 480473887.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 7766191876 + 117548964 = 88126^2 + 10842^2 .

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 17 ways as a sum of consecutive naturals, for example, 56717491 + ... + 56717629.

Almost surely, 2^7883740840 is an apocalyptic number.

It is an amenable number.

7883740840 is an abundant number, since it is smaller than the sum of its proper divisors (10161860630).

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

7883740840 is a wasteful number, since it uses less digits than its factorization.

7883740840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 49.

The square root of 7883740840 is about 88790.4321422078. The cubic root of 7883740840 is about 1990.2644228313.

The spelling of 7883740840 in words is "seven billion, eight hundred eighty-three million, seven hundred forty thousand, eight hundred forty".