1543520042152 has 64 divisors (see below), whose sum is σ = 3254496733440. Its totient is φ = 680118508800.

The previous prime is 1543520042143. The next prime is 1543520042153. The reversal of 1543520042152 is 2512400253451.

It is a happy number.

It is a super-2 number, since 2×1543520042152² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1543520042153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7738 + ... + 1757014.

It is an arithmetic number, because the mean of its divisors is an integer number (50851511460).

Almost surely, 2^{1543520042152} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1543520042152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1627248366720).

1543520042152 is an abundant number, since it is smaller than the sum of its proper divisors (1710976691288).

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

1543520042152 is a wasteful number, since it uses less digits than its factorization.

1543520042152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749602 (or 1749598 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

The spelling of 1543520042152 in words is "one trillion, five hundred forty-three billion, five hundred twenty million, forty-two thousand, one hundred fifty-two".