3561425843 has 4 divisors (see below), whose sum is σ = 3561874320. Its totient is φ = 3560977368.

The previous prime is 3561425831. The next prime is 3561425849. The reversal of 3561425843 is 3485241653.

3561425843 is digitally balanced in base 2, 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 a cyclic number.

It is not a de Polignac number, because 3561425843 - 2⁸ = 3561425587 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3561425843.

It is not an unprimeable number, because it can be changed into a prime (3561425849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212108 + ... + 228281.

It is an arithmetic number, because the mean of its divisors is an integer number (890468580).

Almost surely, 2^3561425843 is an apocalyptic number.

3561425843 is a deficient number, since it is larger than the sum of its proper divisors (448477).

3561425843 is an equidigital number, since it uses as much as digits as its factorization.

3561425843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448476.

The product of its digits is 345600, while the sum is 41.

The square root of 3561425843 is about 59677.6829560264. The cubic root of 3561425843 is about 1527.1251700955.

The spelling of 3561425843 in words is "three billion, five hundred sixty-one million, four hundred twenty-five thousand, eight hundred forty-three".