1389029671017 has 20 divisors (see below), whose sum is σ = 2075703020820. Its totient is φ = 925692758784.

The previous prime is 1389029671013. The next prime is 1389029671061. The reversal of 1389029671017 is 7101769209831.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 958550651136 + 430479019881 = 979056^2 + 656109^2 .

It is not a de Polignac number, because 1389029671017 - 2² = 1389029671013 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1389029671013) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2797092 + ... + 3256037.

It is an arithmetic number, because the mean of its divisors is an integer number (103785151041).

Almost surely, 2^{1389029671017} is an apocalyptic number.

It is an amenable number.

1389029671017 is a deficient number, since it is larger than the sum of its proper divisors (686673349803).

1389029671017 is an equidigital number, since it uses as much as digits as its factorization.

1389029671017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6055974 (or 6055965 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 54.

The spelling of 1389029671017 in words is "one trillion, three hundred eighty-nine billion, twenty-nine million, six hundred seventy-one thousand, seventeen".