1831411481387 has 2 divisors, whose sum is σ = 1831411481388. Its totient is φ = 1831411481386.

The previous prime is 1831411481353. The next prime is 1831411481399. The reversal of 1831411481387 is 7831841141381.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1831411481387 - 2²⁸ = 1831143045931 is a prime.

It is a super-2 number, since 2×1831411481387² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1831411481087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 915705740693 + 915705740694.

It is an arithmetic number, because the mean of its divisors is an integer number (915705740694).

Almost surely, 2^{1831411481387} is an apocalyptic number.

1831411481387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1831411481387 is an equidigital number, since it uses as much as digits as its factorization.

1831411481387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 516096, while the sum is 50.

The spelling of 1831411481387 in words is "one trillion, eight hundred thirty-one billion, four hundred eleven million, four hundred eighty-one thousand, three hundred eighty-seven".