7982646428 has 24 divisors (see below), whose sum is σ = 14352903600. Its totient is φ = 3883212288.

The previous prime is 7982646407. The next prime is 7982646443. The reversal of 7982646428 is 8246462897.

It is a super-2 number, since 2×7982646428² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151463 + ... + 197246.

It is an arithmetic number, because the mean of its divisors is an integer number (598037650).

Almost surely, 2^7982646428 is an apocalyptic number.

It is an amenable number.

7982646428 is a deficient number, since it is larger than the sum of its proper divisors (6370257172).

7982646428 is a wasteful number, since it uses less digits than its factorization.

7982646428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348869 (or 348867 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 56.

The square root of 7982646428 is about 89345.6570181226. The cubic root of 7982646428 is about 1998.5528220906.

The spelling of 7982646428 in words is "seven billion, nine hundred eighty-two million, six hundred forty-six thousand, four hundred twenty-eight".