42426305672 has 16 divisors (see below), whose sum is σ = 79554132060. Its totient is φ = 21211870464.

The previous prime is 42426305641. The next prime is 42426305687. The reversal of 42426305672 is 27650362424.

It can be written as a sum of positive squares in 2 ways, for example, as 30522186436 + 11904119236 = 174706^2 + 109106^2 .

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, 11573 + ... + 291524.

Almost surely, 2^42426305672 is an apocalyptic number.

It is an amenable number.

42426305672 is a deficient number, since it is larger than the sum of its proper divisors (37127826388).

42426305672 is a wasteful number, since it uses less digits than its factorization.

42426305672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320600 (or 320596 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 41.

The spelling of 42426305672 in words is "forty-two billion, four hundred twenty-six million, three hundred five thousand, six hundred seventy-two".