1389975304432 has 80 divisors (see below), whose sum is σ = 3170394081792. Its totient is φ = 582008405760.

The previous prime is 1389975304423. The next prime is 1389975304561. The reversal of 1389975304432 is 2344035799831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 490533 + ... + 1737979.

Almost surely, 2^{1389975304432} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1389975304432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1585197040896).

1389975304432 is an abundant number, since it is smaller than the sum of its proper divisors (1780418777360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1389975304432 is a wasteful number, since it uses less digits than its factorization.

1389975304432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247966 (or 1247960 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 58.

The spelling of 1389975304432 in words is "one trillion, three hundred eighty-nine billion, nine hundred seventy-five million, three hundred four thousand, four hundred thirty-two".