4102561623 has 4 divisors (see below), whose sum is σ = 5470082168. Its totient is φ = 2735041080.

The previous prime is 4102561613. The next prime is 4102561699. The reversal of 4102561623 is 3261652014.

4102561623 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4102561623 - 2⁸ = 4102561367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4102561613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 683760268 + ... + 683760273.

It is an arithmetic number, because the mean of its divisors is an integer number (1367520542).

Almost surely, 2^4102561623 is an apocalyptic number.

4102561623 is a deficient number, since it is larger than the sum of its proper divisors (1367520545).

4102561623 is a wasteful number, since it uses less digits than its factorization.

4102561623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367520544.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 4102561623 is about 64051.2421659409. The cubic root of 4102561623 is about 1600.8539221743.

The spelling of 4102561623 in words is "four billion, one hundred two million, five hundred sixty-one thousand, six hundred twenty-three".