1389574508640 has 96 divisors (see below), whose sum is σ = 4377800286720. Its totient is φ = 370498973184.

The previous prime is 1389574508611. The next prime is 1389574508741. The reversal of 1389574508640 is 468054759831.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3126201 + ... + 3542919.

It is an arithmetic number, because the mean of its divisors is an integer number (45602086320).

Almost surely, 2^{1389574508640} is an apocalyptic number.

1389574508640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1389574508640 is an abundant number, since it is smaller than the sum of its proper divisors (2988225778080).

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

1389574508640 is a wasteful number, since it uses less digits than its factorization.

1389574508640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423684 (or 423676 counting only the distinct ones).

The product of its (nonzero) digits is 29030400, while the sum is 60.

The spelling of 1389574508640 in words is "one trillion, three hundred eighty-nine billion, five hundred seventy-four million, five hundred eight thousand, six hundred forty".