2708256645 has 24 divisors (see below), whose sum is σ = 4773880800. Its totient is φ = 1419920736.

The previous prime is 2708256643. The next prime is 2708256671. The reversal of 2708256645 is 5466528072.

2708256645 is a `hidden beast` number, since 2 + 7 + 0 + 82 + 566 + 4 + 5 = 666.

2708256645 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 2708256645 - 2¹ = 2708256643 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2708256645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2708256641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 507375 + ... + 512684.

It is an arithmetic number, because the mean of its divisors is an integer number (198911700).

Almost surely, 2^2708256645 is an apocalyptic number.

It is an amenable number.

2708256645 is a deficient number, since it is larger than the sum of its proper divisors (2065624155).

2708256645 is a wasteful number, since it uses less digits than its factorization.

2708256645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020129 (or 1020126 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The square root of 2708256645 is about 52040.9131837634. The cubic root of 2708256645 is about 1393.8946112829.

The spelling of 2708256645 in words is "two billion, seven hundred eight million, two hundred fifty-six thousand, six hundred forty-five".