7889247312 has 20 divisors (see below), whose sum is σ = 20380555680. Its totient is φ = 2629749088.

The previous prime is 7889247287. The next prime is 7889247329. The reversal of 7889247312 is 2137429887.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82179612 + ... + 82179707.

It is an arithmetic number, because the mean of its divisors is an integer number (1019027784).

Almost surely, 2^7889247312 is an apocalyptic number.

It is an amenable number.

7889247312 is an abundant number, since it is smaller than the sum of its proper divisors (12491308368).

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

7889247312 is a wasteful number, since it uses less digits than its factorization.

7889247312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164359330 (or 164359324 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 51.

The square root of 7889247312 is about 88821.4349805271. The cubic root of 7889247312 is about 1990.7276878802.

The spelling of 7889247312 in words is "seven billion, eight hundred eighty-nine million, two hundred forty-seven thousand, three hundred twelve".