6526644541872 has 80 divisors (see below), whose sum is σ = 20751382659840. Its totient is φ = 1721312845056.

The previous prime is 6526644541843. The next prime is 6526644541877. The reversal of 6526644541872 is 2781454466256.

It is a super-2 number, since 2×6526644541872² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6526644541877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 747093222 + ... + 747101957.

It is an arithmetic number, because the mean of its divisors is an integer number (259392283248).

Almost surely, 2^{6526644541872} is an apocalyptic number.

It is an amenable number.

6526644541872 is an abundant number, since it is smaller than the sum of its proper divisors (14224738117968).

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

6526644541872 is a wasteful number, since it uses less digits than its factorization.

6526644541872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1494195210 (or 1494195204 counting only the distinct ones).

The product of its digits is 77414400, while the sum is 60.

The spelling of 6526644541872 in words is "six trillion, five hundred twenty-six billion, six hundred forty-four million, five hundred forty-one thousand, eight hundred seventy-two".