2869440645 has 16 divisors (see below), whose sum is σ = 4592903040. Its totient is φ = 1529769024.

The previous prime is 2869440619. The next prime is 2869440661. The reversal of 2869440645 is 5460449682.

It is not a de Polignac number, because 2869440645 - 2²⁰ = 2868392069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2869440594 and 2869440603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3571 + ... + 75839.

It is an arithmetic number, because the mean of its divisors is an integer number (287056440).

Almost surely, 2^2869440645 is an apocalyptic number.

It is an amenable number.

2869440645 is a deficient number, since it is larger than the sum of its proper divisors (1723462395).

2869440645 is a wasteful number, since it uses less digits than its factorization.

2869440645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74924.

The product of its (nonzero) digits is 1658880, while the sum is 48.

The square root of 2869440645 is about 53567.1601356652. The cubic root of 2869440645 is about 1421.0163729601.

The spelling of 2869440645 in words is "two billion, eight hundred sixty-nine million, four hundred forty thousand, six hundred forty-five".