6747437378016 has 72 divisors (see below), whose sum is σ = 19253513424600. Its totient is φ = 2241469499136.

The previous prime is 6747437378009. The next prime is 6747437378111. The reversal of 6747437378016 is 6108737347476.

It is a happy number.

6747437378016 is a `hidden beast` number, since 6 + 7 + 474 + 3 + 73 + 7 + 80 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×6747437378016² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39896166 + ... + 40064933.

It is an arithmetic number, because the mean of its divisors is an integer number (267409908675).

Almost surely, 2^{6747437378016} is an apocalyptic number.

It is an amenable number.

6747437378016 is an abundant number, since it is smaller than the sum of its proper divisors (12506076046584).

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

6747437378016 is a wasteful number, since it uses less digits than its factorization.

6747437378016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79961408 (or 79961397 counting only the distinct ones).

The product of its (nonzero) digits is 99574272, while the sum is 63.

The spelling of 6747437378016 in words is "six trillion, seven hundred forty-seven billion, four hundred thirty-seven million, three hundred seventy-eight thousand, sixteen".