1378122720000 has 1440 divisors, whose sum is σ = 5217888141312. Its totient is φ = 320495616000.

The previous prime is 1378122719951. The next prime is 1378122720017. The reversal of 1378122720000 is 272218731.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 10851359937 + ... + 10851360063.

Almost surely, 2^{1378122720000} is an apocalyptic number.

1378122720000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1378122720000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2608944070656).

1378122720000 is an abundant number, since it is smaller than the sum of its proper divisors (3839765421312).

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

1378122720000 is a wasteful number, since it uses less digits than its factorization.

1378122720000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 33.

Adding to 1378122720000 its reverse (272218731), we get a palindrome (1378394938731).

The spelling of 1378122720000 in words is "one trillion, three hundred seventy-eight billion, one hundred twenty-two million, seven hundred twenty thousand".