40636344255 has 32 divisors (see below), whose sum is σ = 70312596480. Its totient is φ = 19921856640.

The previous prime is 40636344167. The next prime is 40636344269. The reversal of 40636344255 is 55244363604.

It is a happy number.

It is not a de Polignac number, because 40636344255 - 2¹² = 40636340159 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 389361 + ... + 482570.

It is an arithmetic number, because the mean of its divisors is an integer number (2197268640).

Almost surely, 2^40636344255 is an apocalyptic number.

40636344255 is a deficient number, since it is larger than the sum of its proper divisors (29676252225).

40636344255 is a wasteful number, since it uses less digits than its factorization.

40636344255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872191.

The product of its (nonzero) digits is 1036800, while the sum is 42.

The spelling of 40636344255 in words is "forty billion, six hundred thirty-six million, three hundred forty-four thousand, two hundred fifty-five".