654872218728 has 64 divisors (see below), whose sum is σ = 2014991448960. Its totient is φ = 172713551616.

The previous prime is 654872218727. The next prime is 654872218771. The reversal of 654872218728 is 827812278456.

It is not an unprimeable number, because it can be changed into a prime (654872218727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149922775 + ... + 149927142.

It is an arithmetic number, because the mean of its divisors is an integer number (31484241390).

Almost surely, 2^654872218728 is an apocalyptic number.

It is an amenable number.

654872218728 is an abundant number, since it is smaller than the sum of its proper divisors (1360119230232).

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

654872218728 is a wasteful number, since it uses less digits than its factorization.

654872218728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299849946 (or 299849942 counting only the distinct ones).

The product of its digits is 24084480, while the sum is 60.

The spelling of 654872218728 in words is "six hundred fifty-four billion, eight hundred seventy-two million, two hundred eighteen thousand, seven hundred twenty-eight".