36172261372725 has 96 divisors (see below), whose sum is σ = 66551552928000. Its totient is φ = 19262340829440.

The previous prime is 36172261372651. The next prime is 36172261372727. The reversal of 36172261372725 is 52727316227163.

It is a happy number.

36172261372725 is a `hidden beast` number, since 3 + 6 + 1 + 7 + 2 + 261 + 372 + 7 + 2 + 5 = 666.

It is not a de Polignac number, because 36172261372725 - 2⁸ = 36172261372469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36172261372727) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 2646292191 + ... + 2646305859.

It is an arithmetic number, because the mean of its divisors is an integer number (693245343000).

Almost surely, 2^{36172261372725} is an apocalyptic number.

It is an amenable number.

36172261372725 is a deficient number, since it is larger than the sum of its proper divisors (30379291555275).

36172261372725 is a wasteful number, since it uses less digits than its factorization.

36172261372725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19404 (or 19393 counting only the distinct ones).

The product of its digits is 8890560, while the sum is 54.

Adding to 36172261372725 its reverse (52727316227163), we get a palindrome (88899577599888).

The spelling of 36172261372725 in words is "thirty-six trillion, one hundred seventy-two billion, two hundred sixty-one million, three hundred seventy-two thousand, seven hundred twenty-five".