1389544949603 has 8 divisors (see below), whose sum is σ = 1390376726208. Its totient is φ = 1388713284904.

The previous prime is 1389544949563. The next prime is 1389544949609. The reversal of 1389544949603 is 3069494459831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1389544949603 - 2⁶ = 1389544949539 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1389544949603.

It is not an unprimeable number, because it can be changed into a prime (1389544949609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49115900 + ... + 49144182.

It is an arithmetic number, because the mean of its divisors is an integer number (173797090776).

Almost surely, 2^{1389544949603} is an apocalyptic number.

1389544949603 is a deficient number, since it is larger than the sum of its proper divisors (831776605).

1389544949603 is a wasteful number, since it uses less digits than its factorization.

1389544949603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55953.

The product of its (nonzero) digits is 100776960, while the sum is 65.

The spelling of 1389544949603 in words is "one trillion, three hundred eighty-nine billion, five hundred forty-four million, nine hundred forty-nine thousand, six hundred three".