1673412137729 has 2 divisors, whose sum is σ = 1673412137730. Its totient is φ = 1673412137728.

The previous prime is 1673412137713. The next prime is 1673412137737. The reversal of 1673412137729 is 9277312143761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1246297606129 + 427114531600 = 1116377^2 + 653540^2 .

It is a cyclic number.

It is not a de Polignac number, because 1673412137729 - 2⁴ = 1673412137713 is a prime.

It is not a weakly prime, because it can be changed into another prime (1673412137029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836706068864 + 836706068865.

It is an arithmetic number, because the mean of its divisors is an integer number (836706068865).

Almost surely, 2^{1673412137729} is an apocalyptic number.

It is an amenable number.

1673412137729 is a deficient number, since it is larger than the sum of its proper divisors (1).

1673412137729 is an equidigital number, since it uses as much as digits as its factorization.

1673412137729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2667168, while the sum is 53.

The spelling of 1673412137729 in words is "one trillion, six hundred seventy-three billion, four hundred twelve million, one hundred thirty-seven thousand, seven hundred twenty-nine".