42444604456 has 16 divisors (see below), whose sum is σ = 79590273300. Its totient is φ = 21220531584.

The previous prime is 42444604441. The next prime is 42444604481. The reversal of 42444604456 is 65440644424.

It can be written as a sum of positive squares in 2 ways, for example, as 25260016356 + 17184588100 = 158934^2 + 131090^2 .

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, 116535 + ... + 313798.

Almost surely, 2^42444604456 is an apocalyptic number.

It is an amenable number.

42444604456 is a deficient number, since it is larger than the sum of its proper divisors (37145668844).

42444604456 is a wasteful number, since it uses less digits than its factorization.

42444604456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442668 (or 442664 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 43.

The spelling of 42444604456 in words is "forty-two billion, four hundred forty-four million, six hundred four thousand, four hundred fifty-six".