40718851 has 2 divisors, whose sum is σ = 40718852. Its totient is φ = 40718850.

The previous prime is 40718819. The next prime is 40718879. The reversal of 40718851 is 15881704.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40718851 - 2⁵ = 40718819 is a prime.

It is not a weakly prime, because it can be changed into another prime (40718551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20359425 + 20359426.

It is an arithmetic number, because the mean of its divisors is an integer number (20359426).

Almost surely, 2^40718851 is an apocalyptic number.

40718851 is a deficient number, since it is larger than the sum of its proper divisors (1).

40718851 is an equidigital number, since it uses as much as digits as its factorization.

40718851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8960, while the sum is 34.

The square root of 40718851 is about 6381.1324230108. The cubic root of 40718851 is about 344.0317343853.

The spelling of 40718851 in words is "forty million, seven hundred eighteen thousand, eight hundred fifty-one".