654530870749928 has 16 divisors (see below), whose sum is σ = 1227245654490180. Its totient is φ = 327265362885888.

The previous prime is 654530870749831. The next prime is 654530870749957. The reversal of 654530870749928 is 829947078035456.

It can be written as a sum of positive squares in 2 ways, for example, as 342242526040804 + 312288344709124 = 18499798^2 + 17671682^2 .

It is a super-2 number, since 2×654530870749928² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63398450 + ... + 72996062.

Almost surely, 2^{654530870749928} is an apocalyptic number.

It is an amenable number.

654530870749928 is a deficient number, since it is larger than the sum of its proper divisors (572714783740252).

654530870749928 is a wasteful number, since it uses less digits than its factorization.

654530870749928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18122276 (or 18122272 counting only the distinct ones).

The product of its (nonzero) digits is 3657830400, while the sum is 77.

The spelling of 654530870749928 in words is "six hundred fifty-four trillion, five hundred thirty billion, eight hundred seventy million, seven hundred forty-nine thousand, nine hundred twenty-eight".