6747751956 has 96 divisors (see below), whose sum is σ = 17687134080. Its totient is φ = 1984460800.

The previous prime is 6747751931. The next prime is 6747751961. The reversal of 6747751956 is 6591577476.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 6747751896 and 6747751905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1063000 + ... + 1069328.

It is an arithmetic number, because the mean of its divisors is an integer number (184240980).

Almost surely, 2^6747751956 is an apocalyptic number.

6747751956 is a gapful number since it is divisible by the number (66) 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 6747751956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8843567040).

6747751956 is an abundant number, since it is smaller than the sum of its proper divisors (10939382124).

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

6747751956 is a wasteful number, since it uses less digits than its factorization.

6747751956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6585 (or 6583 counting only the distinct ones).

The product of its digits is 11113200, while the sum is 57.

The square root of 6747751956 is about 82144.7013263789. The cubic root of 6747751956 is about 1889.6717472536.

The spelling of 6747751956 in words is "six billion, seven hundred forty-seven million, seven hundred fifty-one thousand, nine hundred fifty-six".