1373003623889 has 2 divisors, whose sum is σ = 1373003623890. Its totient is φ = 1373003623888.

The previous prime is 1373003623877. The next prime is 1373003624017. The reversal of 1373003623889 is 9883263003731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1193425153600 + 179578470289 = 1092440^2 + 423767^2 .

It is a cyclic number.

It is not a de Polignac number, because 1373003623889 - 2²⁰ = 1373002575313 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1373003623889.

It is not a weakly prime, because it can be changed into another prime (1373003623489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686501811944 + 686501811945.

It is an arithmetic number, because the mean of its divisors is an integer number (686501811945).

Almost surely, 2^{1373003623889} is an apocalyptic number.

It is an amenable number.

1373003623889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1373003623889 is an equidigital number, since it uses as much as digits as its factorization.

1373003623889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3919104, while the sum is 53.

The spelling of 1373003623889 in words is "one trillion, three hundred seventy-three billion, three million, six hundred twenty-three thousand, eight hundred eighty-nine".