1389768078219 has 16 divisors (see below), whose sum is σ = 1934549210112. Its totient is φ = 885789451008.

The previous prime is 1389768078211. The next prime is 1389768078247. The reversal of 1389768078219 is 9128708679831.

It is not a de Polignac number, because 1389768078219 - 2³ = 1389768078211 is a prime.

It is a super-3 number, since 3×1389768078219³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is not an unprimeable number, because it can be changed into a prime (1389768078211) 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, 4853779 + ... + 5132124.

It is an arithmetic number, because the mean of its divisors is an integer number (120909325632).

Almost surely, 2^{1389768078219} is an apocalyptic number.

1389768078219 is a deficient number, since it is larger than the sum of its proper divisors (544781131893).

1389768078219 is a wasteful number, since it uses less digits than its factorization.

1389768078219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9987946.

The product of its (nonzero) digits is 73156608, while the sum is 69.

The spelling of 1389768078219 in words is "one trillion, three hundred eighty-nine billion, seven hundred sixty-eight million, seventy-eight thousand, two hundred nineteen".