40179105929 has 2 divisors, whose sum is σ = 40179105930. Its totient is φ = 40179105928.

The previous prime is 40179105907. The next prime is 40179105997. The reversal of 40179105929 is 92950197104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20249290000 + 19929815929 = 142300^2 + 141173^2 .

It is a cyclic number.

It is not a de Polignac number, because 40179105929 - 2¹⁶ = 40179040393 is a prime.

It is a super-2 number, since 2×40179105929² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (40179101929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20089552964 + 20089552965.

It is an arithmetic number, because the mean of its divisors is an integer number (20089552965).

Almost surely, 2^40179105929 is an apocalyptic number.

It is an amenable number.

40179105929 is a deficient number, since it is larger than the sum of its proper divisors (1).

40179105929 is an equidigital number, since it uses as much as digits as its factorization.

40179105929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 204120, while the sum is 47.

The spelling of 40179105929 in words is "forty billion, one hundred seventy-nine million, one hundred five thousand, nine hundred twenty-nine".