6747509136 has 80 divisors (see below), whose sum is σ = 17769140480. Its totient is φ = 2205895680.

The previous prime is 6747509123. The next prime is 6747509137. The reversal of 6747509136 is 6319057476.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (6747509137) 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, 628905 + ... + 639543.

It is an arithmetic number, because the mean of its divisors is an integer number (222114256).

Almost surely, 2^6747509136 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 6747509136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8884570240).

6747509136 is an abundant number, since it is smaller than the sum of its proper divisors (11021631344).

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

6747509136 is a wasteful number, since it uses less digits than its factorization.

6747509136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10904 (or 10898 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 48.

The square root of 6747509136 is about 82143.2233114820. The cubic root of 6747509136 is about 1889.6490801688.

The spelling of 6747509136 in words is "six billion, seven hundred forty-seven million, five hundred nine thousand, one hundred thirty-six".