654344123444 has 24 divisors (see below), whose sum is σ = 1250939894400. Its totient is φ = 297015462080.

The previous prime is 654344123399. The next prime is 654344123533. The reversal of 654344123444 is 444321443456.

654344123444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×654344123444² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 654344123395 and 654344123404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10310129 + ... + 10373400.

It is an arithmetic number, because the mean of its divisors is an integer number (52122495600).

Almost surely, 2^654344123444 is an apocalyptic number.

It is an amenable number.

654344123444 is a deficient number, since it is larger than the sum of its proper divisors (596595770956).

654344123444 is a wasteful number, since it uses less digits than its factorization.

654344123444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20684263 (or 20684261 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 44.

The spelling of 654344123444 in words is "six hundred fifty-four billion, three hundred forty-four million, one hundred twenty-three thousand, four hundred forty-four".