1613810324891 has 2 divisors, whose sum is σ = 1613810324892. Its totient is φ = 1613810324890.

The previous prime is 1613810324813. The next prime is 1613810324909. The reversal of 1613810324891 is 1984230183161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1613810324891 - 2³⁸ = 1338932417947 is a prime.

It is not a weakly prime, because it can be changed into another prime (1613810524891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 806905162445 + 806905162446.

It is an arithmetic number, because the mean of its divisors is an integer number (806905162446).

Almost surely, 2^{1613810324891} is an apocalyptic number.

1613810324891 is a deficient number, since it is larger than the sum of its proper divisors (1).

1613810324891 is an equidigital number, since it uses as much as digits as its factorization.

1613810324891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 47.

The spelling of 1613810324891 in words is "one trillion, six hundred thirteen billion, eight hundred ten million, three hundred twenty-four thousand, eight hundred ninety-one".