40022897813 has 2 divisors, whose sum is σ = 40022897814. Its totient is φ = 40022897812.

The previous prime is 40022897801. The next prime is 40022897869. The reversal of 40022897813 is 31879822004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22158704164 + 17864193649 = 148858^2 + 133657^2 .

It is a cyclic number.

It is not a de Polignac number, because 40022897813 - 2⁶ = 40022897749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40022897113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20011448906 + 20011448907.

It is an arithmetic number, because the mean of its divisors is an integer number (20011448907).

Almost surely, 2^40022897813 is an apocalyptic number.

It is an amenable number.

40022897813 is a deficient number, since it is larger than the sum of its proper divisors (1).

40022897813 is an equidigital number, since it uses as much as digits as its factorization.

40022897813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 40022897813 in words is "forty billion, twenty-two million, eight hundred ninety-seven thousand, eight hundred thirteen".