2067938392657 has 2 divisors, whose sum is σ = 2067938392658. Its totient is φ = 2067938392656.

The previous prime is 2067938392633. The next prime is 2067938392669. The reversal of 2067938392657 is 7562938397602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2026776475201 + 41161917456 = 1423649^2 + 202884^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2067938392657 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2067938392592 and 2067938392601.

It is not a weakly prime, because it can be changed into another prime (2067938392757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1033969196328 + 1033969196329.

It is an arithmetic number, because the mean of its divisors is an integer number (1033969196329).

Almost surely, 2^{2067938392657} is an apocalyptic number.

It is an amenable number.

2067938392657 is a deficient number, since it is larger than the sum of its proper divisors (1).

2067938392657 is an equidigital number, since it uses as much as digits as its factorization.

2067938392657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 205752960, while the sum is 67.

The spelling of 2067938392657 in words is "two trillion, sixty-seven billion, nine hundred thirty-eight million, three hundred ninety-two thousand, six hundred fifty-seven".