1438248046877 has 2 divisors, whose sum is σ = 1438248046878. Its totient is φ = 1438248046876.

The previous prime is 1438248046849. The next prime is 1438248046883. The reversal of 1438248046877 is 7786408428341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1230171575161 + 208076471716 = 1109131^2 + 456154^2 .

It is an emirp because it is prime and its reverse (7786408428341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1438248046877 - 2⁸ = 1438248046621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1438248046577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 719124023438 + 719124023439.

It is an arithmetic number, because the mean of its divisors is an integer number (719124023439).

Almost surely, 2^{1438248046877} is an apocalyptic number.

It is an amenable number.

1438248046877 is a deficient number, since it is larger than the sum of its proper divisors (1).

1438248046877 is an equidigital number, since it uses as much as digits as its factorization.

1438248046877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57802752, while the sum is 62.

The spelling of 1438248046877 in words is "one trillion, four hundred thirty-eight billion, two hundred forty-eight million, forty-six thousand, eight hundred seventy-seven".