41561140613 has 4 divisors (see below), whose sum is σ = 41742630540. Its totient is φ = 41379650688.

The previous prime is 41561140603. The next prime is 41561140619. The reversal of 41561140613 is 31604116514.

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

It can be written as a sum of positive squares in 2 ways, for example, as 32566894369 + 8994246244 = 180463^2 + 94838^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41561140613 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 41561140613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41561140619) 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 3 ways as a sum of consecutive naturals, for example, 90744620 + ... + 90745077.

It is an arithmetic number, because the mean of its divisors is an integer number (10435657635).

Almost surely, 2^41561140613 is an apocalyptic number.

It is an amenable number.

41561140613 is a deficient number, since it is larger than the sum of its proper divisors (181489927).

41561140613 is a wasteful number, since it uses less digits than its factorization.

41561140613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181489926.

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 41561140613 in words is "forty-one billion, five hundred sixty-one million, one hundred forty thousand, six hundred thirteen".