1389015885401 has 4 divisors (see below), whose sum is σ = 1401308061492. Its totient is φ = 1376723709312.

The previous prime is 1389015885377. The next prime is 1389015885409. The reversal of 1389015885401 is 1045885109831.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 679925579776 + 709090305625 = 824576^2 + 842075^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1389015885401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1389015885409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6146087876 + ... + 6146088101.

It is an arithmetic number, because the mean of its divisors is an integer number (350327015373).

Almost surely, 2^{1389015885401} is an apocalyptic number.

It is an amenable number.

1389015885401 is a deficient number, since it is larger than the sum of its proper divisors (12292176091).

1389015885401 is a wasteful number, since it uses less digits than its factorization.

1389015885401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12292176090.

The product of its (nonzero) digits is 1382400, while the sum is 53.

The spelling of 1389015885401 in words is "one trillion, three hundred eighty-nine billion, fifteen million, eight hundred eighty-five thousand, four hundred one".