1671674794063 has 2 divisors, whose sum is σ = 1671674794064. Its totient is φ = 1671674794062.

The previous prime is 1671674794057. The next prime is 1671674794169. The reversal of 1671674794063 is 3604974761761.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1671674794063 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1671674793992 and 1671674794010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1671674744063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 835837397031 + 835837397032.

It is an arithmetic number, because the mean of its divisors is an integer number (835837397032).

Almost surely, 2^{1671674794063} is an apocalyptic number.

1671674794063 is a deficient number, since it is larger than the sum of its proper divisors (1).

1671674794063 is an equidigital number, since it uses as much as digits as its factorization.

1671674794063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32006016, while the sum is 61.

The spelling of 1671674794063 in words is "one trillion, six hundred seventy-one billion, six hundred seventy-four million, seven hundred ninety-four thousand, sixty-three".