42105461045402 has 32 divisors (see below), whose sum is σ = 65920850246160. Its totient is φ = 20151262010880.

The previous prime is 42105461045387. The next prime is 42105461045437. The reversal of 42105461045402 is 20454016450124.

It can be written as a sum of positive squares in 8 ways, for example, as 32522851700161 + 9582609345241 = 5702881^2 + 3095579^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268978268 + ... + 269134760.

Almost surely, 2^{42105461045402} is an apocalyptic number.

42105461045402 is a deficient number, since it is larger than the sum of its proper divisors (23815389200758).

42105461045402 is a wasteful number, since it uses less digits than its factorization.

42105461045402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218498.

The product of its (nonzero) digits is 153600, while the sum is 38.

Adding to 42105461045402 its reverse (20454016450124), we get a palindrome (62559477495526).

The spelling of 42105461045402 in words is "forty-two trillion, one hundred five billion, four hundred sixty-one million, forty-five thousand, four hundred two".