2667530749 has 16 divisors (see below), whose sum is σ = 2996008960. Its totient is φ = 2358305280.

The previous prime is 2667530689. The next prime is 2667530753. The reversal of 2667530749 is 9470357662.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2667530749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2667530149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4972 + ... + 73210.

It is an arithmetic number, because the mean of its divisors is an integer number (187250560).

Almost surely, 2^2667530749 is an apocalyptic number.

It is an amenable number.

2667530749 is a deficient number, since it is larger than the sum of its proper divisors (328478211).

2667530749 is a wasteful number, since it uses less digits than its factorization.

2667530749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68380.

The product of its (nonzero) digits is 1905120, while the sum is 49.

The square root of 2667530749 is about 51648.1437130126. The cubic root of 2667530749 is about 1386.8723128333.

The spelling of 2667530749 in words is "two billion, six hundred sixty-seven million, five hundred thirty thousand, seven hundred forty-nine".