1338674831447 has 4 divisors (see below), whose sum is σ = 1339746630000. Its totient is φ = 1337603032896.

The previous prime is 1338674831419. The next prime is 1338674831477. The reversal of 1338674831447 is 7441384768331.

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 1338674831447 - 2¹⁴ = 1338674815063 is a prime.

It is a super-2 number, since 2×1338674831447² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338674831477) 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, 535897403 + ... + 535899900.

It is an arithmetic number, because the mean of its divisors is an integer number (334936657500).

Almost surely, 2^{1338674831447} is an apocalyptic number.

1338674831447 is a deficient number, since it is larger than the sum of its proper divisors (1071798553).

1338674831447 is a wasteful number, since it uses less digits than its factorization.

1338674831447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071798552.

The product of its digits is 32514048, while the sum is 59.

The spelling of 1338674831447 in words is "one trillion, three hundred thirty-eight billion, six hundred seventy-four million, eight hundred thirty-one thousand, four hundred forty-seven".