1351431748487 has 2 divisors, whose sum is σ = 1351431748488. Its totient is φ = 1351431748486.

The previous prime is 1351431748481. The next prime is 1351431748529. The reversal of 1351431748487 is 7848471341531.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1351431748487 - 2²⁰ = 1351430699911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1351431748481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675715874243 + 675715874244.

It is an arithmetic number, because the mean of its divisors is an integer number (675715874244).

Almost surely, 2^{1351431748487} is an apocalyptic number.

1351431748487 is a deficient number, since it is larger than the sum of its proper divisors (1).

1351431748487 is an equidigital number, since it uses as much as digits as its factorization.

1351431748487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9031680, while the sum is 56.

The spelling of 1351431748487 in words is "one trillion, three hundred fifty-one billion, four hundred thirty-one million, seven hundred forty-eight thousand, four hundred eighty-seven".