7031639668 has 24 divisors (see below), whose sum is σ = 12396531168. Its totient is φ = 3489840096.

The previous prime is 7031639653. The next prime is 7031639677. The reversal of 7031639668 is 8669361307.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437055 + ... + 452857.

It is an arithmetic number, because the mean of its divisors is an integer number (516522132).

Almost surely, 2^7031639668 is an apocalyptic number.

It is an amenable number.

7031639668 is a deficient number, since it is larger than the sum of its proper divisors (5364891500).

7031639668 is a wasteful number, since it uses less digits than its factorization.

7031639668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16623 (or 16621 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 49.

The square root of 7031639668 is about 83854.8726550819. The cubic root of 7031639668 is about 1915.8089707021.

It can be divided in two parts, 7031639 and 668, that added together give a palindrome (7032307).

The spelling of 7031639668 in words is "seven billion, thirty-one million, six hundred thirty-nine thousand, six hundred sixty-eight".