6757478784 has 320 divisors, whose sum is σ = 24339411360. Its totient is φ = 1816805376.

The previous prime is 6757478779. The next prime is 6757478857. The reversal of 6757478784 is 4878747576.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1231054 + ... + 1236530.

Almost surely, 2^6757478784 is an apocalyptic number.

6757478784 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 6757478784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12169705680).

6757478784 is an abundant number, since it is smaller than the sum of its proper divisors (17581932576).

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

6757478784 is a wasteful number, since it uses less digits than its factorization.

6757478784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5527 (or 5506 counting only the distinct ones).

The product of its digits is 73758720, while the sum is 63.

The square root of 6757478784 is about 82203.8854556158. The cubic root of 6757478784 is about 1890.5792933254.

The spelling of 6757478784 in words is "six billion, seven hundred fifty-seven million, four hundred seventy-eight thousand, seven hundred eighty-four".