40131809255 has 4 divisors (see below), whose sum is σ = 48158171112. Its totient is φ = 32105447400.

The previous prime is 40131809251. The next prime is 40131809269. The reversal of 40131809255 is 55290813104.

It is a happy number.

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

It is not a de Polignac number, because 40131809255 - 2² = 40131809251 is a prime.

It is a super-2 number, since 2×40131809255² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40131809251) 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, 4013180921 + ... + 4013180930.

It is an arithmetic number, because the mean of its divisors is an integer number (12039542778).

Almost surely, 2^40131809255 is an apocalyptic number.

40131809255 is a deficient number, since it is larger than the sum of its proper divisors (8026361857).

40131809255 is an equidigital number, since it uses as much as digits as its factorization.

40131809255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8026361856.

The product of its (nonzero) digits is 43200, while the sum is 38.

The spelling of 40131809255 in words is "forty billion, one hundred thirty-one million, eight hundred nine thousand, two hundred fifty-five".