184421220488 has 36 divisors (see below), whose sum is σ = 348468070965. Its totient is φ = 91501863136.

The previous prime is 184421220481. The next prime is 184421220523. The reversal of 184421220488 is 884022124481.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 151521790564 + 32899429924 = 389258^2 + 181382^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=303662.

It is a super-2 number, since 2×184421220488² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (184421220481) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 180982043 + ... + 180983061.

Almost surely, 2^184421220488 is an apocalyptic number.

It is an amenable number.

184421220488 is a deficient number, since it is larger than the sum of its proper divisors (164046850477).

184421220488 is an frugal number, since it uses more digits than its factorization.

184421220488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2342 (or 1170 counting only the distinct ones).

The product of its (nonzero) digits is 262144, while the sum is 44.

The spelling of 184421220488 in words is "one hundred eighty-four billion, four hundred twenty-one million, two hundred twenty thousand, four hundred eighty-eight".