40144044679 has 2 divisors, whose sum is σ = 40144044680. Its totient is φ = 40144044678.

The previous prime is 40144044653. The next prime is 40144044691. The reversal of 40144044679 is 97644044104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40144044679 - 2³³ = 31554110087 is a prime.

It is a super-2 number, since 2×40144044679² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40144044979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20072022339 + 20072022340.

It is an arithmetic number, because the mean of its divisors is an integer number (20072022340).

Almost surely, 2^40144044679 is an apocalyptic number.

40144044679 is a deficient number, since it is larger than the sum of its proper divisors (1).

40144044679 is an equidigital number, since it uses as much as digits as its factorization.

40144044679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 43.

The spelling of 40144044679 in words is "forty billion, one hundred forty-four million, forty-four thousand, six hundred seventy-nine".