40579685136 has 45 divisors (see below), whose sum is σ = 113573523271. Its totient is φ = 13525755936.

The previous prime is 40579685129. The next prime is 40579685137. The reversal of 40579685136 is 63158697504.

The square root of 40579685136 is 201444.

It is a perfect power (a square), and thus also a powerful number.

40579685136 is a `hidden beast` number, since 4 + 0 + 579 + 68 + 5 + 1 + 3 + 6 = 666.

40579685136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40579685137) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2408935 + ... + 2425721.

Almost surely, 2^40579685136 is an apocalyptic number.

40579685136 is the 201444-th square number.

It is an amenable number.

40579685136 is an abundant number, since it is smaller than the sum of its proper divisors (72993838135).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40579685136 is an frugal number, since it uses more digits than its factorization.

40579685136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33588 (or 16792 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The spelling of 40579685136 in words is "forty billion, five hundred seventy-nine million, six hundred eighty-five thousand, one hundred thirty-six".