1371076887449 has 2 divisors, whose sum is σ = 1371076887450. Its totient is φ = 1371076887448.

The previous prime is 1371076887419. The next prime is 1371076887491. The reversal of 1371076887449 is 9447886701731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 809316144400 + 561760743049 = 899620^2 + 749507^2 .

It is a cyclic number.

It is not a de Polignac number, because 1371076887449 - 2¹² = 1371076883353 is a prime.

It is not a weakly prime, because it can be changed into another prime (1371076887419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 685538443724 + 685538443725.

It is an arithmetic number, because the mean of its divisors is an integer number (685538443725).

Almost surely, 2^{1371076887449} is an apocalyptic number.

It is an amenable number.

1371076887449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1371076887449 is an equidigital number, since it uses as much as digits as its factorization.

1371076887449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56899584, while the sum is 65.

The spelling of 1371076887449 in words is "one trillion, three hundred seventy-one billion, seventy-six million, eight hundred eighty-seven thousand, four hundred forty-nine".