6581979962 has 8 divisors (see below), whose sum is σ = 10392600000. Its totient is φ = 3117779964.

The previous prime is 6581979961. The next prime is 6581980001. The reversal of 6581979962 is 2699791856.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 6581979895 and 6581979904.

It is not an unprimeable number, because it can be changed into a prime (6581979961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86604962 + ... + 86605037.

It is an arithmetic number, because the mean of its divisors is an integer number (1299075000).

Almost surely, 2^6581979962 is an apocalyptic number.

6581979962 is a deficient number, since it is larger than the sum of its proper divisors (3810620038).

6581979962 is a wasteful number, since it uses less digits than its factorization.

6581979962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173210020.

The product of its digits is 14696640, while the sum is 62.

The square root of 6581979962 is about 81129.4025739127. The cubic root of 6581979962 is about 1874.0687487664.

The spelling of 6581979962 in words is "six billion, five hundred eighty-one million, nine hundred seventy-nine thousand, nine hundred sixty-two".