40404685755 has 32 divisors (see below), whose sum is σ = 75454838784. Its totient is φ = 18077717376.

The previous prime is 40404685753. The next prime is 40404685759. The reversal of 40404685755 is 55758640404.

It is not a de Polignac number, because 40404685755 - 2¹ = 40404685753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40404685753) 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 31 ways as a sum of consecutive naturals, for example, 4088752 + ... + 4098621.

It is an arithmetic number, because the mean of its divisors is an integer number (2357963712).

Almost surely, 2^40404685755 is an apocalyptic number.

40404685755 is a deficient number, since it is larger than the sum of its proper divisors (35050153029).

40404685755 is a wasteful number, since it uses less digits than its factorization.

40404685755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8187435.

The product of its (nonzero) digits is 2688000, while the sum is 48.

The spelling of 40404685755 in words is "forty billion, four hundred four million, six hundred eighty-five thousand, seven hundred fifty-five".