37841213309 has 2 divisors, whose sum is σ = 37841213310. Its totient is φ = 37841213308.

The previous prime is 37841213287. The next prime is 37841213341. The reversal of 37841213309 is 90331214873.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33590825284 + 4250388025 = 183278^2 + 65195^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-37841213309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37841212309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18920606654 + 18920606655.

It is an arithmetic number, because the mean of its divisors is an integer number (18920606655).

Almost surely, 2^37841213309 is an apocalyptic number.

It is an amenable number.

37841213309 is a deficient number, since it is larger than the sum of its proper divisors (1).

37841213309 is an equidigital number, since it uses as much as digits as its factorization.

37841213309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 41.

The spelling of 37841213309 in words is "thirty-seven billion, eight hundred forty-one million, two hundred thirteen thousand, three hundred nine".