6726518913840 has 160 divisors (see below), whose sum is σ = 23736901741056. Its totient is φ = 1559772487680.

The previous prime is 6726518913659. The next prime is 6726518913857. The reversal of 6726518913840 is 483198156276.

It is a happy number.

It is a super-3 number, since 3×6726518913840³ (a number of 39 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (60) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55328929 + ... + 55450368.

It is a 1-persistent number, because it is pandigital, but 2⋅6726518913840 = 13453037827680 is not.

Almost surely, 2^{6726518913840} is an apocalyptic number.

6726518913840 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6726518913840 is an abundant number, since it is smaller than the sum of its proper divisors (17010382827216).

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

6726518913840 is a wasteful number, since it uses less digits than its factorization.

6726518913840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110779347 (or 110779341 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 60.

The spelling of 6726518913840 in words is "six trillion, seven hundred twenty-six billion, five hundred eighteen million, nine hundred thirteen thousand, eight hundred forty".