42636567746 has 16 divisors (see below), whose sum is σ = 66206489400. Its totient is φ = 20568766848.

The previous prime is 42636567719. The next prime is 42636567823. The reversal of 42636567746 is 64776563624.

42636567746 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 41883669025 + 752898721 = 204655^2 + 27439^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42636567691 and 42636567700.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173381 + ... + 339608.

Almost surely, 2^42636567746 is an apocalyptic number.

42636567746 is a deficient number, since it is larger than the sum of its proper divisors (23569921654).

42636567746 is a wasteful number, since it uses less digits than its factorization.

42636567746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514453.

The product of its digits is 30481920, while the sum is 56.

The spelling of 42636567746 in words is "forty-two billion, six hundred thirty-six million, five hundred sixty-seven thousand, seven hundred forty-six".