1438013504887 has 2 divisors, whose sum is σ = 1438013504888. Its totient is φ = 1438013504886.

The previous prime is 1438013504881. The next prime is 1438013504897. The reversal of 1438013504887 is 7884053108341.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1438013504887 - 2¹¹ = 1438013502839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1438013504881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 719006752443 + 719006752444.

It is an arithmetic number, because the mean of its divisors is an integer number (719006752444).

Almost surely, 2^{1438013504887} is an apocalyptic number.

1438013504887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1438013504887 is an equidigital number, since it uses as much as digits as its factorization.

1438013504887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2580480, while the sum is 52.

The spelling of 1438013504887 in words is "one trillion, four hundred thirty-eight billion, thirteen million, five hundred four thousand, eight hundred eighty-seven".