42543500544 has 54 divisors (see below), whose sum is σ = 122663406866. Its totient is φ = 14181166080.

The previous prime is 42543500509. The next prime is 42543500557. The reversal of 42543500544 is 44500534524.

42543500544 is a `hidden beast` number, since 4 + 25 + 43 + 50 + 0 + 544 = 666.

It can be written as a sum of positive squares in only one way, i.e., 31644140544 + 10899360000 = 177888^2 + 104400^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 42543500499 and 42543500508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9230227 + ... + 9234834.

Almost surely, 2^42543500544 is an apocalyptic number.

It is an amenable number.

42543500544 is an abundant number, since it is smaller than the sum of its proper divisors (80119906322).

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

42543500544 is a wasteful number, since it uses less digits than its factorization.

42543500544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18465083 (or 18465066 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 36.

The spelling of 42543500544 in words is "forty-two billion, five hundred forty-three million, five hundred thousand, five hundred forty-four".