189606648836 has 12 divisors (see below), whose sum is σ = 361976329680. Its totient is φ = 86184840360.

The previous prime is 189606648809. The next prime is 189606648839. The reversal of 189606648836 is 638846606981.

It is not an unprimeable number, because it can be changed into a prime (189606648839) 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, 2154620966 + ... + 2154621053.

It is an arithmetic number, because the mean of its divisors is an integer number (30164694140).

Almost surely, 2^189606648836 is an apocalyptic number.

It is an amenable number.

189606648836 is a deficient number, since it is larger than the sum of its proper divisors (172369680844).

189606648836 is a wasteful number, since it uses less digits than its factorization.

189606648836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4309242034 (or 4309242032 counting only the distinct ones).

The product of its (nonzero) digits is 71663616, while the sum is 65.

The spelling of 189606648836 in words is "one hundred eighty-nine billion, six hundred six million, six hundred forty-eight thousand, eight hundred thirty-six".