654365444238 has 96 divisors (see below), whose sum is σ = 1604010643200. Its totient is φ = 197591320080.

The previous prime is 654365444237. The next prime is 654365444261. The reversal of 654365444238 is 832444563456.

654365444238 is a `hidden beast` number, since 6 + 5 + 4 + 365 + 4 + 44 + 238 = 666.

It is a super-2 number, since 2×654365444238² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654365444233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1672183 + ... + 2026061.

It is an arithmetic number, because the mean of its divisors is an integer number (16708444200).

Almost surely, 2^654365444238 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 654365444238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (802005321600).

654365444238 is an abundant number, since it is smaller than the sum of its proper divisors (949645198962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

654365444238 is a wasteful number, since it uses less digits than its factorization.

654365444238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354195 (or 354178 counting only the distinct ones).

The product of its digits is 33177600, while the sum is 54.

The spelling of 654365444238 in words is "six hundred fifty-four billion, three hundred sixty-five million, four hundred forty-four thousand, two hundred thirty-eight".