2669349644 has 24 divisors (see below), whose sum is σ = 5094384960. Its totient is φ = 1216410624.

The previous prime is 2669349629. The next prime is 2669349647. The reversal of 2669349644 is 4469439662.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2669349647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320789 + ... + 329004.

It is an arithmetic number, because the mean of its divisors is an integer number (212266040).

Almost surely, 2^2669349644 is an apocalyptic number.

It is an amenable number.

2669349644 is a deficient number, since it is larger than the sum of its proper divisors (2425035316).

2669349644 is a wasteful number, since it uses less digits than its factorization.

2669349644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649889 (or 649887 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 53.

The square root of 2669349644 is about 51665.7492348655. The cubic root of 2669349644 is about 1387.1874609632.

The spelling of 2669349644 in words is "two billion, six hundred sixty-nine million, three hundred forty-nine thousand, six hundred forty-four".