2669349645 has 48 divisors (see below), whose sum is σ = 4763266560. Its totient is φ = 1381871232.

The previous prime is 2669349629. The next prime is 2669349647. The reversal of 2669349645 is 5469439662.

2669349645 is a `hidden beast` number, since 2 + 66 + 93 + 496 + 4 + 5 = 666.

2669349645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2669349645 - 2⁴ = 2669349629 is a prime.

It is a super-3 number, since 3×2669349645³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2669349591 and 2669349600.

It is a congruent 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 47 ways as a sum of consecutive naturals, for example, 795862 + ... + 799208.

It is an arithmetic number, because the mean of its divisors is an integer number (99234720).

Almost surely, 2^2669349645 is an apocalyptic number.

It is an amenable number.

2669349645 is a deficient number, since it is larger than the sum of its proper divisors (2093916915).

2669349645 is a wasteful number, since it uses less digits than its factorization.

2669349645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3874 (or 3871 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 54.

The square root of 2669349645 is about 51665.7492445430. The cubic root of 2669349645 is about 1387.1874611364.

The spelling of 2669349645 in words is "two billion, six hundred sixty-nine million, three hundred forty-nine thousand, six hundred forty-five".