7640478208500 has 48 divisors (see below), whose sum is σ = 22249072547520. Its totient is φ = 2037460855200.

The previous prime is 7640478208487. The next prime is 7640478208511. The reversal of 7640478208500 is 58028740467.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2546824570 + ... + 2546827569.

It is an arithmetic number, because the mean of its divisors is an integer number (463522344740).

Almost surely, 2^{7640478208500} is an apocalyptic number.

It is an amenable number.

7640478208500 is an abundant number, since it is smaller than the sum of its proper divisors (14608594339020).

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

7640478208500 is a wasteful number, since it uses less digits than its factorization.

7640478208500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5093652161 (or 5093652149 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 51.

The spelling of 7640478208500 in words is "seven trillion, six hundred forty billion, four hundred seventy-eight million, two hundred eight thousand, five hundred".