40533213869 has 2 divisors, whose sum is σ = 40533213870. Its totient is φ = 40533213868.

The previous prime is 40533213857. The next prime is 40533213887. The reversal of 40533213869 is 96831233504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38666109769 + 1867104100 = 196637^2 + 43210^2 .

It is a cyclic number.

It is not a de Polignac number, because 40533213869 - 2²⁸ = 40264778413 is a prime.

It is a super-2 number, since 2×40533213869² (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 (40533213829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20266606934 + 20266606935.

It is an arithmetic number, because the mean of its divisors is an integer number (20266606935).

Almost surely, 2^40533213869 is an apocalyptic number.

It is an amenable number.

40533213869 is a deficient number, since it is larger than the sum of its proper divisors (1).

40533213869 is an equidigital number, since it uses as much as digits as its factorization.

40533213869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 40533213869 in words is "forty billion, five hundred thirty-three million, two hundred thirteen thousand, eight hundred sixty-nine".