7856086982 has 4 divisors (see below), whose sum is σ = 11784130476. Its totient is φ = 3928043490.

The previous prime is 7856086963. The next prime is 7856086993. The reversal of 7856086982 is 2896806587.

It is a semiprime because it is the product of two primes.

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 as a sum of consecutive naturals, namely, 1964021744 + ... + 1964021747.

It is an arithmetic number, because the mean of its divisors is an integer number (2946032619).

Almost surely, 2^7856086982 is an apocalyptic number.

7856086982 is a deficient number, since it is larger than the sum of its proper divisors (3928043494).

7856086982 is a wasteful number, since it uses less digits than its factorization.

7856086982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3928043493.

The product of its (nonzero) digits is 11612160, while the sum is 59.

The square root of 7856086982 is about 88634.5699036217. The cubic root of 7856086982 is about 1987.9346080252.

The spelling of 7856086982 in words is "seven billion, eight hundred fifty-six million, eighty-six thousand, nine hundred eighty-two".