188868428471 has 4 divisors (see below), whose sum is σ = 188875053744. Its totient is φ = 188861803200.

The previous prime is 188868428453. The next prime is 188868428491. The reversal of 188868428471 is 174824868881.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 188868428471 - 2¹⁸ = 188868166327 is a prime.

It is a super-3 number, since 3×188868428471³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 188868428398 and 188868428407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188868428431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3269690 + ... + 3326951.

It is an arithmetic number, because the mean of its divisors is an integer number (47218763436).

Almost surely, 2^188868428471 is an apocalyptic number.

188868428471 is a deficient number, since it is larger than the sum of its proper divisors (6625273).

188868428471 is an equidigital number, since it uses as much as digits as its factorization.

188868428471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6625272.

The product of its digits is 44040192, while the sum is 65.

The spelling of 188868428471 in words is "one hundred eighty-eight billion, eight hundred sixty-eight million, four hundred twenty-eight thousand, four hundred seventy-one".