40815716841 has 9 divisors (see below), whose sum is σ = 58956910909. Its totient is φ = 27210073836.

The previous prime is 40815716833. The next prime is 40815716869. The reversal of 40815716841 is 14861751804.

The square root of 40815716841 is 202029.

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

40815716841 is a `hidden beast` number, since 408 + 157 + 16 + 84 + 1 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 40815716841 - 2³ = 40815716833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40815716881) 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 8 ways as a sum of consecutive naturals, for example, 572416 + ... + 639758.

Almost surely, 2^40815716841 is an apocalyptic number.

40815716841 is the 202029-th square number.

40815716841 is the 101015-th centered octagonal number.

It is an amenable number.

40815716841 is a deficient number, since it is larger than the sum of its proper divisors (18141194068).

40815716841 is an frugal number, since it uses more digits than its factorization.

40815716841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134692 (or 67346 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The spelling of 40815716841 in words is "forty billion, eight hundred fifteen million, seven hundred sixteen thousand, eight hundred forty-one".