2645707569 has 16 divisors (see below), whose sum is σ = 3821982912. Its totient is φ = 1621444608.

The previous prime is 2645707567. The next prime is 2645707601. The reversal of 2645707569 is 9657075462.

2645707569 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2645707569 - 2¹ = 2645707567 is a prime.

It is a super-2 number, since 2×2645707569² = 13999537081327779522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (2645707567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 601024 + ... + 605409.

It is an arithmetic number, because the mean of its divisors is an integer number (238873932).

Almost surely, 2^2645707569 is an apocalyptic number.

It is an amenable number.

2645707569 is a deficient number, since it is larger than the sum of its proper divisors (1176275343).

2645707569 is a wasteful number, since it uses less digits than its factorization.

2645707569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206496.

The product of its (nonzero) digits is 3175200, while the sum is 51.

The square root of 2645707569 is about 51436.4420328623. The cubic root of 2645707569 is about 1383.0799320557.

The spelling of 2645707569 in words is "two billion, six hundred forty-five million, seven hundred seven thousand, five hundred sixty-nine".