654498422498 has 18 divisors (see below), whose sum is σ = 1009063746243. Its totient is φ = 318384043920.

The previous prime is 654498422491. The next prime is 654498422647. The reversal of 654498422498 is 894224894456.

It can be written as a sum of positive squares in 5 ways, for example, as 417906652849 + 236591769649 = 646457^2 + 486407^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=572057.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (654498422491) 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 8 ways as a sum of consecutive naturals, for example, 42324488 + ... + 42339948.

Almost surely, 2^654498422498 is an apocalyptic number.

654498422498 is a deficient number, since it is larger than the sum of its proper divisors (354565323745).

654498422498 is an frugal number, since it uses more digits than its factorization.

654498422498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30998 (or 15500 counting only the distinct ones).

The product of its digits is 159252480, while the sum is 65.

The spelling of 654498422498 in words is "six hundred fifty-four billion, four hundred ninety-eight million, four hundred twenty-two thousand, four hundred ninety-eight".