37989666696973 has 2 divisors, whose sum is σ = 37989666696974. Its totient is φ = 37989666696972.

The previous prime is 37989666696941. The next prime is 37989666697009. The reversal of 37989666696973 is 37969666698973.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33713096464804 + 4276570232169 = 5806298^2 + 2067987^2 .

It is a cyclic number.

It is not a de Polignac number, because 37989666696973 - 2⁵ = 37989666696941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37989666696073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18994833348486 + 18994833348487.

It is an arithmetic number, because the mean of its divisors is an integer number (18994833348487).

Almost surely, 2^{37989666696973} is an apocalyptic number.

It is an amenable number.

37989666696973 is a deficient number, since it is larger than the sum of its proper divisors (1).

37989666696973 is an equidigital number, since it uses as much as digits as its factorization.

37989666696973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 179992689408, while the sum is 94.

The spelling of 37989666696973 in words is "thirty-seven trillion, nine hundred eighty-nine billion, six hundred sixty-six million, six hundred ninety-six thousand, nine hundred seventy-three".