42102343432 has 8 divisors (see below), whose sum is σ = 78941893950. Its totient is φ = 21051171712.

The previous prime is 42102343373. The next prime is 42102343457. The reversal of 42102343432 is 23434320124.

It can be written as a sum of positive squares in only one way, i.e., 28322870436 + 13779472996 = 168294^2 + 117386^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 42102343432.

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 as a sum of consecutive naturals, namely, 2631396457 + ... + 2631396472.

Almost surely, 2^42102343432 is an apocalyptic number.

It is an amenable number.

42102343432 is a deficient number, since it is larger than the sum of its proper divisors (36839550518).

42102343432 is a wasteful number, since it uses less digits than its factorization.

42102343432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5262792935 (or 5262792931 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 42102343432 its reverse (23434320124), we get a palindrome (65536663556).

The spelling of 42102343432 in words is "forty-two billion, one hundred two million, three hundred forty-three thousand, four hundred thirty-two".