42445644305 has 16 divisors (see below), whose sum is σ = 52279948800. Its totient is φ = 33066994752.

The previous prime is 42445644253. The next prime is 42445644313. The reversal of 42445644305 is 50344654424.

It is a cyclic number.

It is not a de Polignac number, because 42445644305 - 2²² = 42441450001 is a prime.

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, 407054 + ... + 500583.

It is an arithmetic number, because the mean of its divisors is an integer number (3267496800).

Almost surely, 2^42445644305 is an apocalyptic number.

It is an amenable number.

42445644305 is a deficient number, since it is larger than the sum of its proper divisors (9834304495).

42445644305 is a wasteful number, since it uses less digits than its factorization.

42445644305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907888.

The product of its (nonzero) digits is 921600, while the sum is 41.

The spelling of 42445644305 in words is "forty-two billion, four hundred forty-five million, six hundred forty-four thousand, three hundred five".