6957744240 has 80 divisors (see below), whose sum is σ = 21637284768. Its totient is φ = 1849525248.

The previous prime is 6957744223. The next prime is 6957744247. The reversal of 6957744240 is 424477596.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 6957744240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6957744247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30354 + ... + 121806.

Almost surely, 2^6957744240 is an apocalyptic number.

6957744240 is a gapful number since it is divisible by the number (60) 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 6957744240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10818642384).

6957744240 is an abundant number, since it is smaller than the sum of its proper divisors (14679540528).

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

6957744240 is a wasteful number, since it uses less digits than its factorization.

6957744240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91786 (or 91780 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 48.

The square root of 6957744240 is about 83413.0939361441. The cubic root of 6957744240 is about 1909.0742514481.

The spelling of 6957744240 in words is "six billion, nine hundred fifty-seven million, seven hundred forty-four thousand, two hundred forty".