1543531470028 has 12 divisors (see below), whose sum is σ = 2701191660552. Its totient is φ = 771762424160.

The previous prime is 1543531470007. The next prime is 1543531470109. The reversal of 1543531470028 is 8200741353451.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 435423 + ... + 1810153.

It is an arithmetic number, because the mean of its divisors is an integer number (225099305046).

Almost surely, 2^{1543531470028} is an apocalyptic number.

It is an amenable number.

1543531470028 is a deficient number, since it is larger than the sum of its proper divisors (1157660190524).

1543531470028 is a wasteful number, since it uses less digits than its factorization.

1543531470028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1655432 (or 1655430 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 43.

The spelling of 1543531470028 in words is "one trillion, five hundred forty-three billion, five hundred thirty-one million, four hundred seventy thousand, twenty-eight".