40920376213 has 2 divisors, whose sum is σ = 40920376214. Its totient is φ = 40920376212.

The previous prime is 40920376207. The next prime is 40920376267. The reversal of 40920376213 is 31267302904.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23915694609 + 17004681604 = 154647^2 + 130402^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40920376213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40920376283) 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, 20460188106 + 20460188107.

It is an arithmetic number, because the mean of its divisors is an integer number (20460188107).

Almost surely, 2^40920376213 is an apocalyptic number.

It is an amenable number.

40920376213 is a deficient number, since it is larger than the sum of its proper divisors (1).

40920376213 is an equidigital number, since it uses as much as digits as its factorization.

40920376213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 37.

The spelling of 40920376213 in words is "forty billion, nine hundred twenty million, three hundred seventy-six thousand, two hundred thirteen".