7131871568 has 20 divisors (see below), whose sum is σ = 13857833280. Its totient is φ = 3555656544.

The previous prime is 7131871541. The next prime is 7131871627. The reversal of 7131871568 is 8651781317.

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, 636728 + ... + 647831.

It is an arithmetic number, because the mean of its divisors is an integer number (692891664).

Almost surely, 2^7131871568 is an apocalyptic number.

It is an amenable number.

7131871568 is a deficient number, since it is larger than the sum of its proper divisors (6725961712).

7131871568 is a wasteful number, since it uses less digits than its factorization.

7131871568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284914 (or 1284908 counting only the distinct ones).

The product of its digits is 282240, while the sum is 47.

The square root of 7131871568 is about 84450.4089273699. The cubic root of 7131871568 is about 1924.8689689189.

The spelling of 7131871568 in words is "seven billion, one hundred thirty-one million, eight hundred seventy-one thousand, five hundred sixty-eight".