40355904523 has 16 divisors (see below), whose sum is σ = 44251430400. Its totient is φ = 36498480480.

The previous prime is 40355904499. The next prime is 40355904527. The reversal of 40355904523 is 32540955304.

It is not a de Polignac number, because 40355904523 - 2³³ = 31765969931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40355904527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2945533 + ... + 2959201.

It is an arithmetic number, because the mean of its divisors is an integer number (2765714400).

Almost surely, 2^40355904523 is an apocalyptic number.

40355904523 is a deficient number, since it is larger than the sum of its proper divisors (3895525877).

40355904523 is a wasteful number, since it uses less digits than its factorization.

40355904523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15042.

The product of its (nonzero) digits is 324000, while the sum is 40.

The spelling of 40355904523 in words is "forty billion, three hundred fifty-five million, nine hundred four thousand, five hundred twenty-three".