3613420561025 has 24 divisors (see below), whose sum is σ = 4892798162304. Its totient is φ = 2625347806400.

The previous prime is 3613420561007. The next prime is 3613420561039. The reversal of 3613420561025 is 5201650243163.

It is not a de Polignac number, because 3613420561025 - 2⁶ = 3613420560961 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 3613420561025.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6206969 + ... + 6764118.

It is an arithmetic number, because the mean of its divisors is an integer number (203866590096).

Almost surely, 2^{3613420561025} is an apocalyptic number.

It is an amenable number.

3613420561025 is a deficient number, since it is larger than the sum of its proper divisors (1279377601279).

3613420561025 is a wasteful number, since it uses less digits than its factorization.

3613420561025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12972121 (or 12972116 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 3613420561025 in words is "three trillion, six hundred thirteen billion, four hundred twenty million, five hundred sixty-one thousand, twenty-five".