654528517651 has 16 divisors (see below), whose sum is σ = 704929017600. Its totient is φ = 606273342048.

The previous prime is 654528517649. The next prime is 654528517693. The reversal of 654528517651 is 156715825456.

It is a cyclic number.

It is not a de Polignac number, because 654528517651 - 2¹ = 654528517649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 654528517592 and 654528517601.

It is not an unprimeable number, because it can be changed into a prime (654528515651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3508596 + ... + 3690433.

It is an arithmetic number, because the mean of its divisors is an integer number (44058063600).

Almost surely, 2^654528517651 is an apocalyptic number.

654528517651 is a deficient number, since it is larger than the sum of its proper divisors (50400499949).

654528517651 is a wasteful number, since it uses less digits than its factorization.

654528517651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7199178.

The product of its digits is 10080000, while the sum is 55.

The spelling of 654528517651 in words is "six hundred fifty-four billion, five hundred twenty-eight million, five hundred seventeen thousand, six hundred fifty-one".