189264848421 has 24 divisors (see below), whose sum is σ = 286327643392. Its totient is φ = 111005769600.

The previous prime is 189264848417. The next prime is 189264848453. The reversal of 189264848421 is 124848462981.

It is a happy number.

It is not a de Polignac number, because 189264848421 - 2² = 189264848417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189264848221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8398276 + ... + 8420781.

Almost surely, 2^189264848421 is an apocalyptic number.

189264848421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

189264848421 is a deficient number, since it is larger than the sum of its proper divisors (97062794971).

189264848421 is a wasteful number, since it uses less digits than its factorization.

189264848421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16819113 (or 16819102 counting only the distinct ones).

The product of its digits is 7077888, while the sum is 57.

The spelling of 189264848421 in words is "one hundred eighty-nine billion, two hundred sixty-four million, eight hundred forty-eight thousand, four hundred twenty-one".