6726657256 has 64 divisors (see below), whose sum is σ = 13996644480. Its totient is φ = 3005230080.

The previous prime is 6726657247. The next prime is 6726657317. The reversal of 6726657256 is 6527566276.

Its product of digits (6350400) is a multiple of the sum of its prime divisors (5670).

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, 1239060 + ... + 1244476.

It is an arithmetic number, because the mean of its divisors is an integer number (218697570).

Almost surely, 2^6726657256 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 6726657256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6998322240).

6726657256 is an abundant number, since it is smaller than the sum of its proper divisors (7269987224).

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

6726657256 is a wasteful number, since it uses less digits than its factorization.

6726657256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5674 (or 5670 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 52.

The square root of 6726657256 is about 82016.2011800108. The cubic root of 6726657256 is about 1887.7005391711.

The spelling of 6726657256 in words is "six billion, seven hundred twenty-six million, six hundred fifty-seven thousand, two hundred fifty-six".