6751315840 has 128 divisors (see below), whose sum is σ = 16599129120. Its totient is φ = 2624225280.

The previous prime is 6751315817. The next prime is 6751315841. The reversal of 6751315840 is 485131576.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 6751315793 and 6751315802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6751315841) 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, 11991399 + ... + 11991961.

Almost surely, 2^6751315840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6751315840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8299564560).

6751315840 is an abundant number, since it is smaller than the sum of its proper divisors (9847813280).

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

6751315840 is a wasteful number, since it uses less digits than its factorization.

6751315840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080 (or 1068 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 6751315840 is about 82166.3911827701. The cubic root of 6751315840 is about 1890.0043709015.

The spelling of 6751315840 in words is "six billion, seven hundred fifty-one million, three hundred fifteen thousand, eight hundred forty".