36642505173 has 4 divisors (see below), whose sum is σ = 48856673568. Its totient is φ = 24428336780.

The previous prime is 36642505121. The next prime is 36642505187. The reversal of 36642505173 is 37150524663.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 36642505173 - 2¹³ = 36642496981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36642505373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6107084193 + ... + 6107084198.

It is an arithmetic number, because the mean of its divisors is an integer number (12214168392).

Almost surely, 2^36642505173 is an apocalyptic number.

It is an amenable number.

36642505173 is a deficient number, since it is larger than the sum of its proper divisors (12214168395).

36642505173 is a wasteful number, since it uses less digits than its factorization.

36642505173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12214168394.

The product of its (nonzero) digits is 453600, while the sum is 42.

The spelling of 36642505173 in words is "thirty-six billion, six hundred forty-two million, five hundred five thousand, one hundred seventy-three".