188376494213 has 4 divisors (see below), whose sum is σ = 198291046560. Its totient is φ = 178461941868.

The previous prime is 188376494183. The next prime is 188376494221. The reversal of 188376494213 is 312494673881.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 188376494213 - 2⁶ = 188376494149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188376494513) 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, 4957276145 + ... + 4957276182.

It is an arithmetic number, because the mean of its divisors is an integer number (49572761640).

Almost surely, 2^188376494213 is an apocalyptic number.

It is an amenable number.

188376494213 is a deficient number, since it is larger than the sum of its proper divisors (9914552347).

188376494213 is an equidigital number, since it uses as much as digits as its factorization.

188376494213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9914552346.

The product of its digits is 6967296, while the sum is 56.

The spelling of 188376494213 in words is "one hundred eighty-eight billion, three hundred seventy-six million, four hundred ninety-four thousand, two hundred thirteen".