2891629137673 has 2 divisors, whose sum is σ = 2891629137674. Its totient is φ = 2891629137672.

The previous prime is 2891629137653. The next prime is 2891629137703. The reversal of 2891629137673 is 3767319261982.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2857479206464 + 34149931209 = 1690408^2 + 184797^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2891629137673 is a prime.

It is not a weakly prime, because it can be changed into another prime (2891629137623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1445814568836 + 1445814568837.

It is an arithmetic number, because the mean of its divisors is an integer number (1445814568837).

Almost surely, 2^{2891629137673} is an apocalyptic number.

It is an amenable number.

2891629137673 is a deficient number, since it is larger than the sum of its proper divisors (1).

2891629137673 is an equidigital number, since it uses as much as digits as its factorization.

2891629137673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41150592, while the sum is 64.

The spelling of 2891629137673 in words is "two trillion, eight hundred ninety-one billion, six hundred twenty-nine million, one hundred thirty-seven thousand, six hundred seventy-three".