1378505150880 has 768 divisors, whose sum is σ = 5383594782720. Its totient is φ = 291719577600.

The previous prime is 1378505150861. The next prime is 1378505150887. The reversal of 1378505150880 is 880515058731.

It is a super-4 number, since 4×1378505150880⁴ (a number of 50 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (1378505150887) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 140501175 + ... + 140510985.

It is an arithmetic number, because the mean of its divisors is an integer number (7009889040).

Almost surely, 2^{1378505150880} is an apocalyptic number.

1378505150880 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 1378505150880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2691797391360).

1378505150880 is an abundant number, since it is smaller than the sum of its proper divisors (4005089631840).

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

1378505150880 is a wasteful number, since it uses less digits than its factorization.

1378505150880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9965 (or 9957 counting only the distinct ones).

The product of its (nonzero) digits is 1344000, while the sum is 51.

The spelling of 1378505150880 in words is "one trillion, three hundred seventy-eight billion, five hundred five million, one hundred fifty thousand, eight hundred eighty".