36181873261 has 8 divisors (see below), whose sum is σ = 38109062880. Its totient is φ = 34256971728.

The previous prime is 36181873199. The next prime is 36181873283. The reversal of 36181873261 is 16237818163.

36181873261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 36181873261 - 2¹¹ = 36181871213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36181870261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 539506 + ... + 602851.

It is an arithmetic number, because the mean of its divisors is an integer number (4763632860).

Almost surely, 2^36181873261 is an apocalyptic number.

It is an amenable number.

36181873261 is a deficient number, since it is larger than the sum of its proper divisors (1927189619).

36181873261 is a wasteful number, since it uses less digits than its factorization.

36181873261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144043.

The product of its digits is 290304, while the sum is 46.

The spelling of 36181873261 in words is "thirty-six billion, one hundred eighty-one million, eight hundred seventy-three thousand, two hundred sixty-one".