1538107668017 has 4 divisors (see below), whose sum is σ = 1538135126256. Its totient is φ = 1538080209780.

The previous prime is 1538107668001. The next prime is 1538107668029. The reversal of 1538107668017 is 7108667018351.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1538107668017 - 2⁴ = 1538107668001 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 1538107668017.

It is not an unprimeable number, because it can be changed into a prime (1538107668077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13644923 + ... + 13757184.

It is an arithmetic number, because the mean of its divisors is an integer number (384533781564).

Almost surely, 2^{1538107668017} is an apocalyptic number.

It is an amenable number.

1538107668017 is a deficient number, since it is larger than the sum of its proper divisors (27458239).

1538107668017 is an equidigital number, since it uses as much as digits as its factorization.

1538107668017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27458238.

The product of its (nonzero) digits is 1693440, while the sum is 53.

The spelling of 1538107668017 in words is "one trillion, five hundred thirty-eight billion, one hundred seven million, six hundred sixty-eight thousand, seventeen".