7986806336 has 14 divisors (see below), whose sum is σ = 15848818950. Its totient is φ = 3993403136.

The previous prime is 7986806291. The next prime is 7986806371. The reversal of 7986806336 is 6336086897.

It can be written as a sum of positive squares in only one way, i.e., 7638760000 + 348046336 = 87400^2 + 18656^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62396861 + ... + 62396988.

Almost surely, 2^7986806336 is an apocalyptic number.

It is an amenable number.

7986806336 is a deficient number, since it is larger than the sum of its proper divisors (7862012614).

7986806336 is a wasteful number, since it uses less digits than its factorization.

7986806336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124793861 (or 124793851 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 56.

The square root of 7986806336 is about 89368.9338416880. The cubic root of 7986806336 is about 1998.8999230263.

The spelling of 7986806336 in words is "seven billion, nine hundred eighty-six million, eight hundred six thousand, three hundred thirty-six".