654144876 has 144 divisors (see below), whose sum is σ = 2130723840. Its totient is φ = 169884000.

The previous prime is 654144839. The next prime is 654144877. The reversal of 654144876 is 678441456.

It is not an unprimeable number, because it can be changed into a prime (654144877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 87901 + ... + 95051.

Almost surely, 2^654144876 is an apocalyptic number.

654144876 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 654144876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1065361920).

654144876 is an abundant number, since it is smaller than the sum of its proper divisors (1476578964).

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

654144876 is a wasteful number, since it uses less digits than its factorization.

654144876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7193 (or 7174 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 654144876 is about 25576.2560981861. The cubic root of 654144876 is about 868.0764637065.

It can be divided in two parts, 654 and 144876, that added together give a triangular number (145530 = T₅₃₉).

The spelling of 654144876 in words is "six hundred fifty-four million, one hundred forty-four thousand, eight hundred seventy-six".