36173442042 has 12 divisors (see below), whose sum is σ = 78375791130. Its totient is φ = 12057814008.

The previous prime is 36173442031. The next prime is 36173442047. The reversal of 36173442042 is 24024437163.

36173442042 is a `hidden beast` number, since 3 + 6 + 173 + 442 + 0 + 42 = 666.

It can be written as a sum of positive squares in only one way, i.e., 23863761441 + 12309680601 = 154479^2 + 110949^2 .

It is a junction number, because it is equal to n+sod(n) for n = 36173441988 and 36173442006.

It is not an unprimeable number, because it can be changed into a prime (36173442047) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1004817817 + ... + 1004817852.

Almost surely, 2^36173442042 is an apocalyptic number.

36173442042 is an abundant number, since it is smaller than the sum of its proper divisors (42202349088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

36173442042 is a wasteful number, since it uses less digits than its factorization.

36173442042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009635677 (or 2009635674 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 36.

The spelling of 36173442042 in words is "thirty-six billion, one hundred seventy-three million, four hundred forty-two thousand, forty-two".