188369245439906 has 4 divisors (see below), whose sum is σ = 282553868159862. Its totient is φ = 94184622719952.

The previous prime is 188369245439891. The next prime is 188369245439923. The reversal of 188369245439906 is 609934542963881.

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

It can be written as a sum of positive squares in only one way, i.e., 127492439475025 + 60876805964881 = 11291255^2 + 7802359^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47092311359975 + ... + 47092311359978.

Almost surely, 2^{188369245439906} is an apocalyptic number.

188369245439906 is a deficient number, since it is larger than the sum of its proper divisors (94184622719956).

188369245439906 is an equidigital number, since it uses as much as digits as its factorization.

188369245439906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94184622719955.

The product of its (nonzero) digits is 2418647040, while the sum is 77.

The spelling of 188369245439906 in words is "one hundred eighty-eight trillion, three hundred sixty-nine billion, two hundred forty-five million, four hundred thirty-nine thousand, nine hundred six".