1687483177139 has 2 divisors, whose sum is σ = 1687483177140. Its totient is φ = 1687483177138.

The previous prime is 1687483177123. The next prime is 1687483177157. The reversal of 1687483177139 is 9317713847861.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1687483177139 - 2⁴ = 1687483177123 is a prime.

It is not a weakly prime, because it can be changed into another prime (1687483176139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 843741588569 + 843741588570.

It is an arithmetic number, because the mean of its divisors is an integer number (843741588570).

Almost surely, 2^{1687483177139} is an apocalyptic number.

1687483177139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1687483177139 is an equidigital number, since it uses as much as digits as its factorization.

1687483177139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42674688, while the sum is 65.

The spelling of 1687483177139 in words is "one trillion, six hundred eighty-seven billion, four hundred eighty-three million, one hundred seventy-seven thousand, one hundred thirty-nine".