1348187635891 has 2 divisors, whose sum is σ = 1348187635892. Its totient is φ = 1348187635890.

The previous prime is 1348187635877. The next prime is 1348187635931. The reversal of 1348187635891 is 1985367818431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1348187635891 - 2¹¹ = 1348187633843 is a prime.

It is not a weakly prime, because it can be changed into another prime (1348187635801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 674093817945 + 674093817946.

It is an arithmetic number, because the mean of its divisors is an integer number (674093817946).

Almost surely, 2^{1348187635891} is an apocalyptic number.

1348187635891 is a deficient number, since it is larger than the sum of its proper divisors (1).

1348187635891 is an equidigital number, since it uses as much as digits as its factorization.

1348187635891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34836480, while the sum is 64.

The spelling of 1348187635891 in words is "one trillion, three hundred forty-eight billion, one hundred eighty-seven million, six hundred thirty-five thousand, eight hundred ninety-one".