37964343689 has 2 divisors, whose sum is σ = 37964343690. Its totient is φ = 37964343688.

The previous prime is 37964343667. The next prime is 37964343701. The reversal of 37964343689 is 98634346973.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31326168064 + 6638175625 = 176992^2 + 81475^2 .

It is a cyclic number.

It is not a de Polignac number, because 37964343689 - 2¹² = 37964339593 is a prime.

It is not a weakly prime, because it can be changed into another prime (37964343089) 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, 18982171844 + 18982171845.

It is an arithmetic number, because the mean of its divisors is an integer number (18982171845).

Almost surely, 2^37964343689 is an apocalyptic number.

It is an amenable number.

37964343689 is a deficient number, since it is larger than the sum of its proper divisors (1).

37964343689 is an equidigital number, since it uses as much as digits as its factorization.

37964343689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70543872, while the sum is 62.

The spelling of 37964343689 in words is "thirty-seven billion, nine hundred sixty-four million, three hundred forty-three thousand, six hundred eighty-nine".