40262640029 has 2 divisors, whose sum is σ = 40262640030. Its totient is φ = 40262640028.

The previous prime is 40262640017. The next prime is 40262640043. The reversal of 40262640029 is 92004626204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21575203225 + 18687436804 = 146885^2 + 136702^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40262640029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40262660029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20131320014 + 20131320015.

It is an arithmetic number, because the mean of its divisors is an integer number (20131320015).

Almost surely, 2^40262640029 is an apocalyptic number.

It is an amenable number.

40262640029 is a deficient number, since it is larger than the sum of its proper divisors (1).

40262640029 is an equidigital number, since it uses as much as digits as its factorization.

40262640029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 40262640029 in words is "forty billion, two hundred sixty-two million, six hundred forty thousand, twenty-nine".