1338669061943 has 4 divisors (see below), whose sum is σ = 1339472104440. Its totient is φ = 1337866019448.

The previous prime is 1338669061883. The next prime is 1338669061967. The reversal of 1338669061943 is 3491609668331.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1338669061943 - 2¹⁰ = 1338669060919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338669061043) 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, 401518748 + ... + 401522081.

It is an arithmetic number, because the mean of its divisors is an integer number (334868026110).

Almost surely, 2^{1338669061943} is an apocalyptic number.

1338669061943 is a deficient number, since it is larger than the sum of its proper divisors (803042497).

1338669061943 is an equidigital number, since it uses as much as digits as its factorization.

1338669061943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803042496.

The product of its (nonzero) digits is 15116544, while the sum is 59.

The spelling of 1338669061943 in words is "one trillion, three hundred thirty-eight billion, six hundred sixty-nine million, sixty-one thousand, nine hundred forty-three".