6458979216 has 80 divisors (see below), whose sum is σ = 17002840320. Its totient is φ = 2112220800.

The previous prime is 6458979203. The next prime is 6458979223. The reversal of 6458979216 is 6129798546.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1592391 + ... + 1596441.

It is an arithmetic number, because the mean of its divisors is an integer number (212535504).

Almost surely, 2^6458979216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6458979216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8501420160).

6458979216 is an abundant number, since it is smaller than the sum of its proper divisors (10543861104).

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

6458979216 is a wasteful number, since it uses less digits than its factorization.

6458979216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4684 (or 4678 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 57.

The square root of 6458979216 is about 80367.7747358977. The cubic root of 6458979216 is about 1862.3213795400.

The spelling of 6458979216 in words is "six billion, four hundred fifty-eight million, nine hundred seventy-nine thousand, two hundred sixteen".