42560044749 has 24 divisors (see below), whose sum is σ = 62826596352. Its totient is φ = 27750662880.

The previous prime is 42560044741. The next prime is 42560044763. The reversal of 42560044749 is 94744006524.

42560044749 is a `hidden beast` number, since 4 + 2 + 560 + 0 + 4 + 47 + 49 = 666.

It is not a de Polignac number, because 42560044749 - 2³ = 42560044741 is a prime.

It is a super-2 number, since 2×42560044749² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42560044741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 597844 + ... + 665234.

It is an arithmetic number, because the mean of its divisors is an integer number (2617774848).

Almost surely, 2^42560044749 is an apocalyptic number.

It is an amenable number.

42560044749 is a deficient number, since it is larger than the sum of its proper divisors (20266551603).

42560044749 is a wasteful number, since it uses less digits than its factorization.

42560044749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68937 (or 68934 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 42560044749 in words is "forty-two billion, five hundred sixty million, forty-four thousand, seven hundred forty-nine".