42543554421140 has 12 divisors (see below), whose sum is σ = 89341464284436. Its totient is φ = 17017421768448.

The previous prime is 42543554421079. The next prime is 42543554421227. The reversal of 42543554421140 is 4112445534524.

It can be written as a sum of positive squares in 2 ways, for example, as 25344518823556 + 17199035597584 = 5034334^2 + 4147172^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42543554421091 and 42543554421100.

It is a congruent 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, 1063588860509 + ... + 1063588860548.

It is an arithmetic number, because the mean of its divisors is an integer number (7445122023703).

Almost surely, 2^{42543554421140} is an apocalyptic number.

It is an amenable number.

42543554421140 is an abundant number, since it is smaller than the sum of its proper divisors (46797909863296).

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

42543554421140 is a wasteful number, since it uses less digits than its factorization.

42543554421140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2127177721066 (or 2127177721064 counting only the distinct ones).

The product of its (nonzero) digits is 1536000, while the sum is 44.

Adding to 42543554421140 its reverse (4112445534524), we get a palindrome (46655999955664).

The spelling of 42543554421140 in words is "forty-two trillion, five hundred forty-three billion, five hundred fifty-four million, four hundred twenty-one thousand, one hundred forty".