1339645878374 has 4 divisors (see below), whose sum is σ = 2009468817564. Its totient is φ = 669822939186.

The previous prime is 1339645878367. The next prime is 1339645878413. The reversal of 1339645878374 is 4738785469331.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334911469592 + ... + 334911469595.

It is an arithmetic number, because the mean of its divisors is an integer number (502367204391).

Almost surely, 2^{1339645878374} is an apocalyptic number.

1339645878374 is a deficient number, since it is larger than the sum of its proper divisors (669822939190).

1339645878374 is an equidigital number, since it uses as much as digits as its factorization.

1339645878374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669822939189.

The product of its digits is 365783040, while the sum is 68.

The spelling of 1339645878374 in words is "one trillion, three hundred thirty-nine billion, six hundred forty-five million, eight hundred seventy-eight thousand, three hundred seventy-four".