1378480349273 has 4 divisors (see below), whose sum is σ = 1459567428660. Its totient is φ = 1297393269888.

The previous prime is 1378480349249. The next prime is 1378480349287. The reversal of 1378480349273 is 3729430848731.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1106552517184 + 271927832089 = 1051928^2 + 521467^2 .

It is a cyclic number.

It is not a de Polignac number, because 1378480349273 - 2¹⁸ = 1378480087129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1378480349243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40543539668 + ... + 40543539701.

It is an arithmetic number, because the mean of its divisors is an integer number (364891857165).

Almost surely, 2^{1378480349273} is an apocalyptic number.

It is an amenable number.

1378480349273 is a deficient number, since it is larger than the sum of its proper divisors (81087079387).

1378480349273 is an equidigital number, since it uses as much as digits as its factorization.

1378480349273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81087079386.

The product of its (nonzero) digits is 24385536, while the sum is 59.

The spelling of 1378480349273 in words is "one trillion, three hundred seventy-eight billion, four hundred eighty million, three hundred forty-nine thousand, two hundred seventy-three".