6871947650 has 24 divisors (see below), whose sum is σ = 12935828304. Its totient is φ = 2715659600.

The previous prime is 6871947647. The next prime is 6871947653. The reversal of 6871947650 is 567491786.

It is an interprime number because it is at equal distance from previous prime (6871947647) and next prime (6871947653).

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6871947592 and 6871947601.

It is not an unprimeable number, because it can be changed into a prime (6871947653) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 823796 + ... + 832095.

It is an arithmetic number, because the mean of its divisors is an integer number (538992846).

Almost surely, 2^6871947650 is an apocalyptic number.

6871947650 is a deficient number, since it is larger than the sum of its proper divisors (6063880654).

6871947650 is a wasteful number, since it uses less digits than its factorization.

6871947650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655986 (or 1655981 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 53.

The square root of 6871947650 is about 82897.2113523730. The cubic root of 6871947650 is about 1901.1947840714.

The spelling of 6871947650 in words is "six billion, eight hundred seventy-one million, nine hundred forty-seven thousand, six hundred fifty".