41687640245 has 8 divisors (see below), whose sum is σ = 50710445016. Its totient is φ = 32893261056.

The previous prime is 41687640221. The next prime is 41687640257. The reversal of 41687640245 is 54204678614.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5282237041 + 36405403204 = 72679^2 + 190802^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 41687640245 - 2²² = 41683445941 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 41687640245.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 57105992 + ... + 57106721.

It is an arithmetic number, because the mean of its divisors is an integer number (6338805627).

Almost surely, 2^41687640245 is an apocalyptic number.

It is an amenable number.

41687640245 is a deficient number, since it is larger than the sum of its proper divisors (9022804771).

41687640245 is a wasteful number, since it uses less digits than its factorization.

41687640245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114212791.

The product of its (nonzero) digits is 1290240, while the sum is 47.

The spelling of 41687640245 in words is "forty-one billion, six hundred eighty-seven million, six hundred forty thousand, two hundred forty-five".