185447906423 has 8 divisors (see below), whose sum is σ = 205110782688. Its totient is φ = 166556123424.

The previous prime is 185447906383. The next prime is 185447906431. The reversal of 185447906423 is 324609744581.

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 185447906423 - 2⁶ = 185447906359 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 (185447906023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192772811 + ... + 192773772.

It is an arithmetic number, because the mean of its divisors is an integer number (25638847836).

It is a 2-persistent number, because it is pandigital, and so is 2⋅185447906423 = 370895812846, but 3⋅185447906423 = 556343719269 is not.

Almost surely, 2^185447906423 is an apocalyptic number.

185447906423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

185447906423 is a deficient number, since it is larger than the sum of its proper divisors (19662876265).

185447906423 is a wasteful number, since it uses less digits than its factorization.

185447906423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385546633.

The product of its (nonzero) digits is 5806080, while the sum is 53.

The spelling of 185447906423 in words is "one hundred eighty-five billion, four hundred forty-seven million, nine hundred six thousand, four hundred twenty-three".