3900665834437 has 2 divisors, whose sum is σ = 3900665834438. Its totient is φ = 3900665834436.

The previous prime is 3900665834411. The next prime is 3900665834449. The reversal of 3900665834437 is 7344385660093.

3900665834437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3886697903841 + 13967930596 = 1971471^2 + 118186^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3900665834437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3900665834467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1950332917218 + 1950332917219.

It is an arithmetic number, because the mean of its divisors is an integer number (1950332917219).

Almost surely, 2^{3900665834437} is an apocalyptic number.

It is an amenable number.

3900665834437 is a deficient number, since it is larger than the sum of its proper divisors (1).

3900665834437 is an equidigital number, since it uses as much as digits as its factorization.

3900665834437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39191040, while the sum is 58.

The spelling of 3900665834437 in words is "three trillion, nine hundred billion, six hundred sixty-five million, eight hundred thirty-four thousand, four hundred thirty-seven".