1351891218959 has 2 divisors, whose sum is σ = 1351891218960. Its totient is φ = 1351891218958.

The previous prime is 1351891218871. The next prime is 1351891218967. The reversal of 1351891218959 is 9598121981531.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1351891218959 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1351891211959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675945609479 + 675945609480.

It is an arithmetic number, because the mean of its divisors is an integer number (675945609480).

Almost surely, 2^{1351891218959} is an apocalyptic number.

1351891218959 is a deficient number, since it is larger than the sum of its proper divisors (1).

1351891218959 is an equidigital number, since it uses as much as digits as its factorization.

1351891218959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6998400, while the sum is 62.

The spelling of 1351891218959 in words is "one trillion, three hundred fifty-one billion, eight hundred ninety-one million, two hundred eighteen thousand, nine hundred fifty-nine".