6942740544 has 84 divisors (see below), whose sum is σ = 20093488896. Its totient is φ = 2291758848.

The previous prime is 6942740507. The next prime is 6942740549. The reversal of 6942740544 is 4450472496.

6942740544 is a `hidden beast` number, since 69 + 4 + 2 + 7 + 40 + 544 = 666.

It is a super-2 number, since 2×6942740544² = 96403292522602831872, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6942740544.

It is not an unprimeable number, because it can be changed into a prime (6942740549) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 817 + ... + 117839.

Almost surely, 2^6942740544 is an apocalyptic number.

6942740544 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6942740544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10046744448).

6942740544 is an abundant number, since it is smaller than the sum of its proper divisors (13150748352).

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

6942740544 is a wasteful number, since it uses less digits than its factorization.

6942740544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117144 (or 117131 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The square root of 6942740544 is about 83323.1093034819. The cubic root of 6942740544 is about 1907.7010198300.

The spelling of 6942740544 in words is "six billion, nine hundred forty-two million, seven hundred forty thousand, five hundred forty-four".