1673881872937 has 2 divisors, whose sum is σ = 1673881872938. Its totient is φ = 1673881872936.

The previous prime is 1673881872913. The next prime is 1673881872941. The reversal of 1673881872937 is 7392781883761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 907873574976 + 766008297961 = 952824^2 + 875219^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1673881872937 is a prime.

It is not a weakly prime, because it can be changed into another prime (1673881872947) 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, 836940936468 + 836940936469.

It is an arithmetic number, because the mean of its divisors is an integer number (836940936469).

Almost surely, 2^{1673881872937} is an apocalyptic number.

It is an amenable number.

1673881872937 is a deficient number, since it is larger than the sum of its proper divisors (1).

1673881872937 is an equidigital number, since it uses as much as digits as its factorization.

1673881872937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 170698752, while the sum is 70.

The spelling of 1673881872937 in words is "one trillion, six hundred seventy-three billion, eight hundred eighty-one million, eight hundred seventy-two thousand, nine hundred thirty-seven".