2669264749 has 4 divisors (see below), whose sum is σ = 2726057664. Its totient is φ = 2612471836.

The previous prime is 2669264737. The next prime is 2669264789. The reversal of 2669264749 is 9474629662.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2669264749 - 2⁷ = 2669264621 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2669264749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2669264729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28396387 + ... + 28396480.

It is an arithmetic number, because the mean of its divisors is an integer number (681514416).

Almost surely, 2^2669264749 is an apocalyptic number.

It is an amenable number.

2669264749 is a deficient number, since it is larger than the sum of its proper divisors (56792915).

2669264749 is an equidigital number, since it uses as much as digits as its factorization.

2669264749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56792914.

The product of its digits is 7838208, while the sum is 55.

The square root of 2669264749 is about 51664.9276492283. The cubic root of 2669264749 is about 1387.1727549432.

The spelling of 2669264749 in words is "two billion, six hundred sixty-nine million, two hundred sixty-four thousand, seven hundred forty-nine".