6749227155 has 64 divisors (see below), whose sum is σ = 12182962176. Its totient is φ = 3160944000.

The previous prime is 6749227151. The next prime is 6749227169. The reversal of 6749227155 is 5517229476.

It is not a de Polignac number, because 6749227155 - 2² = 6749227151 is a prime.

It is a super-3 number, since 3×6749227155³ (a number of 30 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (6749227151) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4147452 + ... + 4149078.

It is an arithmetic number, because the mean of its divisors is an integer number (190358784).

Almost surely, 2^6749227155 is an apocalyptic number.

6749227155 is a deficient number, since it is larger than the sum of its proper divisors (5433735021).

6749227155 is a wasteful number, since it uses less digits than its factorization.

6749227155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2488.

The product of its digits is 1058400, while the sum is 48.

The square root of 6749227155 is about 82153.6801062497. The cubic root of 6749227155 is about 1889.8094444091.

The spelling of 6749227155 in words is "six billion, seven hundred forty-nine million, two hundred twenty-seven thousand, one hundred fifty-five".