1378625856000 has 320 divisors, whose sum is σ = 4590573077376. Its totient is φ = 367073280000.

The previous prime is 1378625855977. The next prime is 1378625856043. The reversal of 1378625856000 is 6585268731.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (320).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134586879 + ... + 134597121.

Almost surely, 2^{1378625856000} is an apocalyptic number.

1378625856000 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 1378625856000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2295286538688).

1378625856000 is an abundant number, since it is smaller than the sum of its proper divisors (3211947221376).

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

1378625856000 is an equidigital number, since it uses as much as digits as its factorization.

1378625856000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10980 (or 10954 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 1378625856000 in words is "one trillion, three hundred seventy-eight billion, six hundred twenty-five million, eight hundred fifty-six thousand".