42561412736 has 32 divisors (see below), whose sum is σ = 84914632800. Its totient is φ = 21249505024.

The previous prime is 42561412711. The next prime is 42561412741. The reversal of 42561412736 is 63721416524.

42561412736 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×42561412736² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42561412693 and 42561412702.

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, 155996 + ... + 330843.

It is an arithmetic number, because the mean of its divisors is an integer number (2653582275).

Almost surely, 2^42561412736 is an apocalyptic number.

It is an amenable number.

42561412736 is a deficient number, since it is larger than the sum of its proper divisors (42353220064).

42561412736 is an equidigital number, since it uses as much as digits as its factorization.

42561412736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487536 (or 487524 counting only the distinct ones).

The product of its digits is 241920, while the sum is 41.

The spelling of 42561412736 in words is "forty-two billion, five hundred sixty-one million, four hundred twelve thousand, seven hundred thirty-six".