1389000138875 has 16 divisors (see below), whose sum is σ = 1733579924544. Its totient is φ = 1111131040000.

The previous prime is 1389000138871. The next prime is 1389000138887. The reversal of 1389000138875 is 5788310009831.

It is a happy number.

It is not a de Polignac number, because 1389000138875 - 2² = 1389000138871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1389000138871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1723010 + ... + 2397240.

It is an arithmetic number, because the mean of its divisors is an integer number (108348745284).

Almost surely, 2^{1389000138875} is an apocalyptic number.

1389000138875 is a deficient number, since it is larger than the sum of its proper divisors (344579785669).

1389000138875 is an equidigital number, since it uses as much as digits as its factorization.

1389000138875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690727 (or 690717 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 53.

The spelling of 1389000138875 in words is "one trillion, three hundred eighty-nine billion, one hundred thirty-eight thousand, eight hundred seventy-five".