40646010685 has 32 divisors (see below), whose sum is σ = 60926072832. Its totient is φ = 25385840640.

The previous prime is 40646010679. The next prime is 40646010707. The reversal of 40646010685 is 58601064604.

It is a happy number.

It is not a de Polignac number, because 40646010685 - 2¹³ = 40646002493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1083372 + ... + 1120261.

It is an arithmetic number, because the mean of its divisors is an integer number (1903939776).

Almost surely, 2^40646010685 is an apocalyptic number.

It is an amenable number.

40646010685 is a deficient number, since it is larger than the sum of its proper divisors (20280062147).

40646010685 is a wasteful number, since it uses less digits than its factorization.

40646010685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2203693.

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 40646010685 in words is "forty billion, six hundred forty-six million, ten thousand, six hundred eighty-five".