41863640565 has 16 divisors (see below), whose sum is σ = 68792145408. Its totient is φ = 21723834816.

The previous prime is 41863640521. The next prime is 41863640593. The reversal of 41863640565 is 56504636814.

It is not a de Polignac number, because 41863640565 - 2¹² = 41863636469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37714437 + ... + 37715546.

It is an arithmetic number, because the mean of its divisors is an integer number (4299509088).

Almost surely, 2^41863640565 is an apocalyptic number.

It is an amenable number.

41863640565 is a deficient number, since it is larger than the sum of its proper divisors (26928504843).

41863640565 is a wasteful number, since it uses less digits than its factorization.

41863640565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75430028.

The product of its (nonzero) digits is 2073600, while the sum is 48.

The spelling of 41863640565 in words is "forty-one billion, eight hundred sixty-three million, six hundred forty thousand, five hundred sixty-five".