1378323217248 has 48 divisors (see below), whose sum is σ = 3619376285616. Its totient is φ = 459278807040.

The previous prime is 1378323217241. The next prime is 1378323217289. The reversal of 1378323217248 is 8427123238731.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 1378323217248.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378323217241) 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, 2262013 + ... + 2805948.

It is an arithmetic number, because the mean of its divisors is an integer number (75403672617).

Almost surely, 2^{1378323217248} is an apocalyptic number.

It is an amenable number.

1378323217248 is an abundant number, since it is smaller than the sum of its proper divisors (2241053068368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1378323217248 is a wasteful number, since it uses less digits than its factorization.

1378323217248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5070807 (or 5070799 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 51.

The spelling of 1378323217248 in words is "one trillion, three hundred seventy-eight billion, three hundred twenty-three million, two hundred seventeen thousand, two hundred forty-eight".