1338459199679 has 24 divisors (see below), whose sum is σ = 1567265637888. Its totient is φ = 1139680750320.

The previous prime is 1338459199607. The next prime is 1338459199697. The reversal of 1338459199679 is 9769919548331.

It is not a de Polignac number, because 1338459199679 - 2⁸ = 1338459199423 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 (1338459199279) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17589344 + ... + 17665274.

It is an arithmetic number, because the mean of its divisors is an integer number (65302734912).

Almost surely, 2^{1338459199679} is an apocalyptic number.

1338459199679 is a deficient number, since it is larger than the sum of its proper divisors (228806438209).

1338459199679 is a wasteful number, since it uses less digits than its factorization.

1338459199679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78315 (or 78308 counting only the distinct ones).

The product of its digits is 396809280, while the sum is 74.

The spelling of 1338459199679 in words is "one trillion, three hundred thirty-eight billion, four hundred fifty-nine million, one hundred ninety-nine thousand, six hundred seventy-nine".