6985747892 has 12 divisors (see below), whose sum is σ = 12455720676. Its totient is φ = 3426970560.

The previous prime is 6985747859. The next prime is 6985747919. The reversal of 6985747892 is 2987475896.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5971580176 + 1014167716 = 77276^2 + 31846^2 .

It is a super-2 number, since 2×6985747892² = 97601347221164887328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16475609 + ... + 16476032.

It is an arithmetic number, because the mean of its divisors is an integer number (1037976723).

Almost surely, 2^6985747892 is an apocalyptic number.

It is an amenable number.

6985747892 is a deficient number, since it is larger than the sum of its proper divisors (5469972784).

6985747892 is a wasteful number, since it uses less digits than its factorization.

6985747892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32951698 (or 32951696 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 65.

The square root of 6985747892 is about 83580.7866198925. The cubic root of 6985747892 is about 1911.6320482198.

The spelling of 6985747892 in words is "six billion, nine hundred eighty-five million, seven hundred forty-seven thousand, eight hundred ninety-two".