40407206905 has 16 divisors (see below), whose sum is σ = 52237894464. Its totient is φ = 29828111040.

The previous prime is 40407206821. The next prime is 40407206921. The reversal of 40407206905 is 50960270404.

It is not a de Polignac number, because 40407206905 - 2¹⁷ = 40407075833 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 63702 + ... + 291328.

It is an arithmetic number, because the mean of its divisors is an integer number (3264868404).

Almost surely, 2^40407206905 is an apocalyptic number.

It is an amenable number.

40407206905 is a deficient number, since it is larger than the sum of its proper divisors (11830687559).

40407206905 is a wasteful number, since it uses less digits than its factorization.

40407206905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230376.

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 40407206905 in words is "forty billion, four hundred seven million, two hundred six thousand, nine hundred five".