7640609580 has 96 divisors (see below), whose sum is σ = 23791219200. Its totient is φ = 2035744704.

The previous prime is 7640609579. The next prime is 7640609609. The reversal of 7640609580 is 859060467.

7640609580 is a `hidden beast` number, since 7 + 6 + 4 + 0 + 60 + 9 + 580 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 698191 + ... + 709049.

It is an arithmetic number, because the mean of its divisors is an integer number (247825200).

Almost surely, 2^7640609580 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7640609580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11895609600).

7640609580 is an abundant number, since it is smaller than the sum of its proper divisors (16150609620).

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

7640609580 is a wasteful number, since it uses less digits than its factorization.

7640609580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12180 (or 12172 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 7640609580 is about 87410.5804808548. The cubic root of 7640609580 is about 1969.5907813807.

The spelling of 7640609580 in words is "seven billion, six hundred forty million, six hundred nine thousand, five hundred eighty".