7664430140 has 24 divisors (see below), whose sum is σ = 16942425360. Its totient is φ = 2904415488.

The previous prime is 7664430113. The next prime is 7664430143. The reversal of 7664430140 is 410344667.

It is a self number, because there is not a number n which added to its sum of digits gives 7664430140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7664430143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10084397 + ... + 10085156.

It is an arithmetic number, because the mean of its divisors is an integer number (705934390).

Almost surely, 2^7664430140 is an apocalyptic number.

It is an amenable number.

7664430140 is an abundant number, since it is smaller than the sum of its proper divisors (9277995220).

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

7664430140 is a wasteful number, since it uses less digits than its factorization.

7664430140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20169581 (or 20169579 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 7664430140 is about 87546.7311782684. The cubic root of 7664430140 is about 1971.6354735339.

The spelling of 7664430140 in words is "seven billion, six hundred sixty-four million, four hundred thirty thousand, one hundred forty".