40433700067021 has 2 divisors, whose sum is σ = 40433700067022. Its totient is φ = 40433700067020.

The previous prime is 40433700067001. The next prime is 40433700067039. The reversal of 40433700067021 is 12076000733404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35350884726921 + 5082815340100 = 5945661^2 + 2254510^2 .

It is a cyclic number.

It is not a de Polignac number, because 40433700067021 - 2²⁷ = 40433565849293 is a prime.

It is a super-2 number, since 2×40433700067021² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40433700067001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20216850033510 + 20216850033511.

It is an arithmetic number, because the mean of its divisors is an integer number (20216850033511).

Almost surely, 2^{40433700067021} is an apocalyptic number.

It is an amenable number.

40433700067021 is a deficient number, since it is larger than the sum of its proper divisors (1).

40433700067021 is an equidigital number, since it uses as much as digits as its factorization.

40433700067021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 37.

The spelling of 40433700067021 in words is "forty trillion, four hundred thirty-three billion, seven hundred million, sixty-seven thousand, twenty-one".