7871705946 has 48 divisors (see below), whose sum is σ = 18374647200. Its totient is φ = 2421096480.

The previous prime is 7871705939. The next prime is 7871705951. The reversal of 7871705946 is 6495071787.

It is a junction number, because it is equal to n+sod(n) for n = 7871705892 and 7871705901.

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 23 ways as a sum of consecutive naturals, for example, 774405 + ... + 784503.

It is an arithmetic number, because the mean of its divisors is an integer number (382805150).

Almost surely, 2^7871705946 is an apocalyptic number.

7871705946 is an abundant number, since it is smaller than the sum of its proper divisors (10502941254).

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

7871705946 is a wasteful number, since it uses less digits than its factorization.

7871705946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13451 (or 13448 counting only the distinct ones).

The product of its (nonzero) digits is 2963520, while the sum is 54.

The square root of 7871705946 is about 88722.6349135326. The cubic root of 7871705946 is about 1989.2511635823.

The spelling of 7871705946 in words is "seven billion, eight hundred seventy-one million, seven hundred five thousand, nine hundred forty-six".