1389009044737 has 2 divisors, whose sum is σ = 1389009044738. Its totient is φ = 1389009044736.

The previous prime is 1389009044729. The next prime is 1389009044771. The reversal of 1389009044737 is 7374409009831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1308607875136 + 80401169601 = 1143944^2 + 283551^2 .

It is a cyclic number.

It is not a de Polignac number, because 1389009044737 - 2³ = 1389009044729 is a prime.

It is a super-2 number, since 2×1389009044737² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1389009044707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694504522368 + 694504522369.

It is an arithmetic number, because the mean of its divisors is an integer number (694504522369).

Almost surely, 2^{1389009044737} is an apocalyptic number.

It is an amenable number.

1389009044737 is a deficient number, since it is larger than the sum of its proper divisors (1).

1389009044737 is an equidigital number, since it uses as much as digits as its factorization.

1389009044737 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 1389009044737 in words is "one trillion, three hundred eighty-nine billion, nine million, forty-four thousand, seven hundred thirty-seven".