6719620264 has 128 divisors (see below), whose sum is σ = 15261696000. Its totient is φ = 2713201920.

The previous prime is 6719620231. The next prime is 6719620279. The reversal of 6719620264 is 4620269176.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6719620264.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18309409 + ... + 18309775.

It is an arithmetic number, because the mean of its divisors is an integer number (119232000).

Almost surely, 2^6719620264 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 6719620264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7630848000).

6719620264 is an abundant number, since it is smaller than the sum of its proper divisors (8542075736).

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

6719620264 is a wasteful number, since it uses less digits than its factorization.

6719620264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663 (or 659 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 6719620264 is about 81973.2899425173. The cubic root of 6719620264 is about 1887.0420462539.

The spelling of 6719620264 in words is "six billion, seven hundred nineteen million, six hundred twenty thousand, two hundred sixty-four".