181388141472853 has 64 divisors (see below), whose sum is σ = 221149461657600. Its totient is φ = 145522758850560.

The previous prime is 181388141472847. The next prime is 181388141472899. The reversal of 181388141472853 is 358274141883181.

It is not a de Polignac number, because 181388141472853 - 2¹³ = 181388141464661 is a prime.

It is a super-3 number, since 3×181388141472853³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181388141472803) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 634905243 + ... + 635190871.

It is an arithmetic number, because the mean of its divisors is an integer number (3455460338400).

Almost surely, 2^{181388141472853} is an apocalyptic number.

It is an amenable number.

181388141472853 is a deficient number, since it is larger than the sum of its proper divisors (39761320184747).

181388141472853 is a wasteful number, since it uses less digits than its factorization.

181388141472853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286550.

The product of its digits is 41287680, while the sum is 64.

The spelling of 181388141472853 in words is "one hundred eighty-one trillion, three hundred eighty-eight billion, one hundred forty-one million, four hundred seventy-two thousand, eight hundred fifty-three".