40363043069 has 2 divisors, whose sum is σ = 40363043070. Its totient is φ = 40363043068.

The previous prime is 40363043041. The next prime is 40363043087. The reversal of 40363043069 is 96034036304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26573238169 + 13789804900 = 163013^2 + 117430^2 .

It is a cyclic number.

It is not a de Polignac number, because 40363043069 - 2¹⁶ = 40362977533 is a prime.

It is a super-2 number, since 2×40363043069² (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 (40363043869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20181521534 + 20181521535.

It is an arithmetic number, because the mean of its divisors is an integer number (20181521535).

Almost surely, 2^40363043069 is an apocalyptic number.

It is an amenable number.

40363043069 is a deficient number, since it is larger than the sum of its proper divisors (1).

40363043069 is an equidigital number, since it uses as much as digits as its factorization.

40363043069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 38.

The spelling of 40363043069 in words is "forty billion, three hundred sixty-three million, forty-three thousand, sixty-nine".