3867400668737 has 2 divisors, whose sum is σ = 3867400668738. Its totient is φ = 3867400668736.

The previous prime is 3867400668667. The next prime is 3867400668787. The reversal of 3867400668737 is 7378660047683.

3867400668737 is digitally balanced in base 3, 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., 2497866455296 + 1369534213441 = 1580464^2 + 1170271^2 .

It is a cyclic number.

It is not a de Polignac number, because 3867400668737 - 2¹⁸ = 3867400406593 is a prime.

It is not a weakly prime, because it can be changed into another prime (3867400668787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1933700334368 + 1933700334369.

It is an arithmetic number, because the mean of its divisors is an integer number (1933700334369).

Almost surely, 2^{3867400668737} is an apocalyptic number.

It is an amenable number.

3867400668737 is a deficient number, since it is larger than the sum of its proper divisors (1).

3867400668737 is an equidigital number, since it uses as much as digits as its factorization.

3867400668737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 170698752, while the sum is 65.

The spelling of 3867400668737 in words is "three trillion, eight hundred sixty-seven billion, four hundred million, six hundred sixty-eight thousand, seven hundred thirty-seven".