1338951572605 has 8 divisors (see below), whose sum is σ = 1606748399712. Its totient is φ = 1071156916368.

The previous prime is 1338951572477. The next prime is 1338951572639. The reversal of 1338951572605 is 5062751598331.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1338951572605 - 2⁷ = 1338951572477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1542682 + ... + 2248948.

It is an arithmetic number, because the mean of its divisors is an integer number (200843549964).

Almost surely, 2^{1338951572605} is an apocalyptic number.

It is an amenable number.

1338951572605 is a deficient number, since it is larger than the sum of its proper divisors (267796827107).

1338951572605 is an equidigital number, since it uses as much as digits as its factorization.

1338951572605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085435.

The product of its (nonzero) digits is 6804000, while the sum is 55.

The spelling of 1338951572605 in words is "one trillion, three hundred thirty-eight billion, nine hundred fifty-one million, five hundred seventy-two thousand, six hundred five".