1478452508728 has 16 divisors (see below), whose sum is σ = 2985336796680. Its totient is φ = 682362696288.

The previous prime is 1478452508719. The next prime is 1478452508783. The reversal of 1478452508728 is 8278052548741.

It is a super-3 number, since 3×1478452508728³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7107944650 + ... + 7107944857.

Almost surely, 2^{1478452508728} is an apocalyptic number.

It is an amenable number.

1478452508728 is an abundant number, since it is smaller than the sum of its proper divisors (1506884287952).

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

1478452508728 is a wasteful number, since it uses less digits than its factorization.

1478452508728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14215889526 (or 14215889522 counting only the distinct ones).

The product of its (nonzero) digits is 40140800, while the sum is 61.

The spelling of 1478452508728 in words is "one trillion, four hundred seventy-eight billion, four hundred fifty-two million, five hundred eight thousand, seven hundred twenty-eight".