1320207139489 has 16 divisors (see below), whose sum is σ = 1530759479296. Its totient is φ = 1115260650000.

The previous prime is 1320207139481. The next prime is 1320207139507. The reversal of 1320207139489 is 9849317020231.

It is a happy number.

It is not a de Polignac number, because 1320207139489 - 2³ = 1320207139481 is a prime.

It is a super-2 number, since 2×1320207139489² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320207139481) 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, 4783137 + ... + 5051614.

It is an arithmetic number, because the mean of its divisors is an integer number (95672467456).

Almost surely, 2^{1320207139489} is an apocalyptic number.

It is an amenable number.

1320207139489 is a deficient number, since it is larger than the sum of its proper divisors (210552339807).

1320207139489 is a wasteful number, since it uses less digits than its factorization.

1320207139489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9835036.

The product of its (nonzero) digits is 653184, while the sum is 49.

The spelling of 1320207139489 in words is "one trillion, three hundred twenty billion, two hundred seven million, one hundred thirty-nine thousand, four hundred eighty-nine".