1389005096655 has 64 divisors (see below), whose sum is σ = 2468911265280. Its totient is φ = 661147660800.

The previous prime is 1389005096629. The next prime is 1389005096711. The reversal of 1389005096655 is 5566905009831.

It is a happy number.

It is not a de Polignac number, because 1389005096655 - 2²⁰ = 1389004048079 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1389005096595 and 1389005096604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5132061 + ... + 5395929.

It is an arithmetic number, because the mean of its divisors is an integer number (38576738520).

Almost surely, 2^{1389005096655} is an apocalyptic number.

1389005096655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1389005096655 is a deficient number, since it is larger than the sum of its proper divisors (1079906168625).

1389005096655 is a wasteful number, since it uses less digits than its factorization.

1389005096655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264472.

The product of its (nonzero) digits is 8748000, while the sum is 57.

The spelling of 1389005096655 in words is "one trillion, three hundred eighty-nine billion, five million, ninety-six thousand, six hundred fifty-five".