40021369337 has 2 divisors, whose sum is σ = 40021369338. Its totient is φ = 40021369336.

The previous prime is 40021369327. The next prime is 40021369343. The reversal of 40021369337 is 73396312004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20202642496 + 19818726841 = 142136^2 + 140779^2 .

It is a cyclic number.

It is not a de Polignac number, because 40021369337 - 2²⁰ = 40020320761 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40021369337.

It is not a weakly prime, because it can be changed into another prime (40021369327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20010684668 + 20010684669.

It is an arithmetic number, because the mean of its divisors is an integer number (20010684669).

Almost surely, 2^40021369337 is an apocalyptic number.

It is an amenable number.

40021369337 is a deficient number, since it is larger than the sum of its proper divisors (1).

40021369337 is an equidigital number, since it uses as much as digits as its factorization.

40021369337 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 38.

The spelling of 40021369337 in words is "forty billion, twenty-one million, three hundred sixty-nine thousand, three hundred thirty-seven".