185242063213 has 8 divisors (see below), whose sum is σ = 190341987840. Its totient is φ = 180147053520.

The previous prime is 185242063211. The next prime is 185242063219. The reversal of 185242063213 is 312360242581.

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

It is a cyclic number.

It is not a de Polignac number, because 185242063213 - 2¹ = 185242063211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (185242063211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1152253 + ... + 1303138.

It is an arithmetic number, because the mean of its divisors is an integer number (23792748480).

Almost surely, 2^185242063213 is an apocalyptic number.

It is an amenable number.

185242063213 is a deficient number, since it is larger than the sum of its proper divisors (5099924627).

185242063213 is a wasteful number, since it uses less digits than its factorization.

185242063213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2457467.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 185242063213 in words is "one hundred eighty-five billion, two hundred forty-two million, sixty-three thousand, two hundred thirteen".