40605855829 has 16 divisors (see below), whose sum is σ = 50704523136. Its totient is φ = 31591526400.

The previous prime is 40605855821. The next prime is 40605855859. The reversal of 40605855829 is 92855850604.

It is not a de Polignac number, because 40605855829 - 2³ = 40605855821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40605855821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361992 + ... + 460705.

It is an arithmetic number, because the mean of its divisors is an integer number (3169032696).

Almost surely, 2^40605855829 is an apocalyptic number.

It is an amenable number.

40605855829 is a deficient number, since it is larger than the sum of its proper divisors (10098667307).

40605855829 is a wasteful number, since it uses less digits than its factorization.

40605855829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823356.

The product of its (nonzero) digits is 3456000, while the sum is 52.

The spelling of 40605855829 in words is "forty billion, six hundred five million, eight hundred fifty-five thousand, eight hundred twenty-nine".