1478182027840 has 168 divisors, whose sum is σ = 4095957370680. Its totient is φ = 506637508608.

The previous prime is 1478182027733. The next prime is 1478182027841. The reversal of 1478182027840 is 487202818741.

It can be written as a sum of positive squares in 4 ways, for example, as 555060760576 + 923121267264 = 745024^2 + 960792^2 .

It is not an unprimeable number, because it can be changed into a prime (1478182027841) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53125612 + ... + 53153428.

It is an arithmetic number, because the mean of its divisors is an integer number (24380698635).

Almost surely, 2^{1478182027840} is an apocalyptic number.

1478182027840 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 1478182027840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2047978685340).

1478182027840 is an abundant number, since it is smaller than the sum of its proper divisors (2617775342840).

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

1478182027840 is a wasteful number, since it uses less digits than its factorization.

1478182027840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31237 (or 31220 counting only the distinct ones).

The product of its (nonzero) digits is 1605632, while the sum is 52.

The spelling of 1478182027840 in words is "one trillion, four hundred seventy-eight billion, one hundred eighty-two million, twenty-seven thousand, eight hundred forty".