42105562722 has 20 divisors (see below), whose sum is σ = 94347650166. Its totient is φ = 14035187520.

The previous prime is 42105562721. The next prime is 42105562777. The reversal of 42105562722 is 22726550124.

42105562722 is a `hidden beast` number, since 4 + 2 + 1 + 0 + 5 + 5 + 627 + 22 = 666.

It can be written as a sum of positive squares in only one way, i.e., 39665103921 + 2440458801 = 199161^2 + 49401^2 .

It is not an unprimeable number, because it can be changed into a prime (42105562721) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 129955279 + ... + 129955602.

Almost surely, 2^42105562722 is an apocalyptic number.

42105562722 is an abundant number, since it is smaller than the sum of its proper divisors (52242087444).

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

42105562722 is a wasteful number, since it uses less digits than its factorization.

42105562722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259910895 (or 259910886 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The spelling of 42105562722 in words is "forty-two billion, one hundred five million, five hundred sixty-two thousand, seven hundred twenty-two".