4125963561 has 8 divisors (see below), whose sum is σ = 5501946240. Its totient is φ = 2750311632.

The previous prime is 4125963553. The next prime is 4125963587. The reversal of 4125963561 is 1653695214.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4125963561 - 2³ = 4125963553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4125963551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51946 + ... + 104643.

It is an arithmetic number, because the mean of its divisors is an integer number (687743280).

Almost surely, 2^4125963561 is an apocalyptic number.

It is an amenable number.

4125963561 is a deficient number, since it is larger than the sum of its proper divisors (1375982679).

4125963561 is a wasteful number, since it uses less digits than its factorization.

4125963561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165375.

The product of its digits is 194400, while the sum is 42.

The square root of 4125963561 is about 64233.6637675293. The cubic root of 4125963561 is about 1603.8920302249.

The spelling of 4125963561 in words is "four billion, one hundred twenty-five million, nine hundred sixty-three thousand, five hundred sixty-one".