41563403261 has 4 divisors (see below), whose sum is σ = 41966931552. Its totient is φ = 41159874972.

The previous prime is 41563403243. The next prime is 41563403281. The reversal of 41563403261 is 16230436514.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41563403261 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 (41563403281) 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, 201763991 + ... + 201764196.

It is an arithmetic number, because the mean of its divisors is an integer number (10491732888).

Almost surely, 2^41563403261 is an apocalyptic number.

It is an amenable number.

41563403261 is a deficient number, since it is larger than the sum of its proper divisors (403528291).

41563403261 is a wasteful number, since it uses less digits than its factorization.

41563403261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403528290.

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 41563403261 its reverse (16230436514), we get a palindrome (57793839775).

The spelling of 41563403261 in words is "forty-one billion, five hundred sixty-three million, four hundred three thousand, two hundred sixty-one".