42206684752 has 20 divisors (see below), whose sum is σ = 82114776436. Its totient is φ = 21015774720.

The previous prime is 42206684749. The next prime is 42206684761. The reversal of 42206684752 is 25748660224.

It can be written as a sum of positive squares in 2 ways, for example, as 30017641536 + 12189043216 = 173256^2 + 110404^2 .

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 5469003 + ... + 5476714.

Almost surely, 2^42206684752 is an apocalyptic number.

It is an amenable number.

42206684752 is a deficient number, since it is larger than the sum of its proper divisors (39908091684).

42206684752 is a wasteful number, since it uses less digits than its factorization.

42206684752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10945966 (or 10945960 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 46.

The spelling of 42206684752 in words is "forty-two billion, two hundred six million, six hundred eighty-four thousand, seven hundred fifty-two".