1378313549401 has 8 divisors (see below), whose sum is σ = 1379155548008. Its totient is φ = 1377471744000.

The previous prime is 1378313549399. The next prime is 1378313549443. The reversal of 1378313549401 is 1049453138731.

It can be written as a sum of positive squares in 4 ways, for example, as 91370780176 + 1286942769225 = 302276^2 + 1134435^2 .

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 1378313549401 - 2¹ = 1378313549399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1378313349401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15777121 + ... + 15864241.

It is an arithmetic number, because the mean of its divisors is an integer number (172394443501).

Almost surely, 2^{1378313549401} is an apocalyptic number.

It is an amenable number.

1378313549401 is a deficient number, since it is larger than the sum of its proper divisors (841998607).

1378313549401 is an equidigital number, since it uses as much as digits as its factorization.

1378313549401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96603.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 1378313549401 in words is "one trillion, three hundred seventy-eight billion, three hundred thirteen million, five hundred forty-nine thousand, four hundred one".