37989666698941 has 2 divisors, whose sum is σ = 37989666698942. Its totient is φ = 37989666698940.

The previous prime is 37989666698939. The next prime is 37989666698947. The reversal of 37989666698941 is 14989666698973.

It is a happy number.

37989666698941 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19999946736900 + 17989719962041 = 4472130^2 + 4241429^2 .

It is a cyclic number.

It is not a de Polignac number, because 37989666698941 - 2¹ = 37989666698939 is a prime.

Together with 37989666698939, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37989666698947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18994833349470 + 18994833349471.

It is an arithmetic number, because the mean of its divisors is an integer number (18994833349471).

Almost surely, 2^{37989666698941} is an apocalyptic number.

It is an amenable number.

37989666698941 is a deficient number, since it is larger than the sum of its proper divisors (1).

37989666698941 is an equidigital number, since it uses as much as digits as its factorization.

37989666698941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45712429056, while the sum is 91.

The spelling of 37989666698941 in words is "thirty-seven trillion, nine hundred eighty-nine billion, six hundred sixty-six million, six hundred ninety-eight thousand, nine hundred forty-one".