2635645705 has 32 divisors (see below), whose sum is σ = 4150748160. Its totient is φ = 1556521920.

The previous prime is 2635645673. The next prime is 2635645709. The reversal of 2635645705 is 5075465362.

It is not a de Polignac number, because 2635645705 - 2⁵ = 2635645673 is a prime.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2635645709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 172839 + ... + 187468.

It is an arithmetic number, because the mean of its divisors is an integer number (129710880).

Almost surely, 2^2635645705 is an apocalyptic number.

It is an amenable number.

2635645705 is a deficient number, since it is larger than the sum of its proper divisors (1515102455).

2635645705 is a wasteful number, since it uses less digits than its factorization.

2635645705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360349.

The product of its (nonzero) digits is 756000, while the sum is 43.

The square root of 2635645705 is about 51338.5401525988. The cubic root of 2635645705 is about 1381.3243788425.

The spelling of 2635645705 in words is "two billion, six hundred thirty-five million, six hundred forty-five thousand, seven hundred five".