42365131636 has 12 divisors (see below), whose sum is σ = 74140760260. Its totient is φ = 21182057280.

The previous prime is 42365131621. The next prime is 42365131657. The reversal of 42365131636 is 63613156324.

It can be written as a sum of positive squares in 2 ways, for example, as 4949966736 + 37415164900 = 70356^2 + 193430^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109066 + ... + 310846.

Almost surely, 2^42365131636 is an apocalyptic number.

It is an amenable number.

42365131636 is a deficient number, since it is larger than the sum of its proper divisors (31775628624).

42365131636 is a wasteful number, since it uses less digits than its factorization.

42365131636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254274 (or 254272 counting only the distinct ones).

The product of its digits is 233280, while the sum is 40.

The spelling of 42365131636 in words is "forty-two billion, three hundred sixty-five million, one hundred thirty-one thousand, six hundred thirty-six".