654797028085 has 16 divisors (see below), whose sum is σ = 812932608240. Its totient is φ = 505723778560.

The previous prime is 654797028059. The next prime is 654797028091. The reversal of 654797028085 is 580820797456.

It can be written as a sum of positive squares in 8 ways, for example, as 61136024049 + 593661004036 = 247257^2 + 770494^2 .

It is not a de Polignac number, because 654797028085 - 2⁷ = 654797027957 is a prime.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1266465 + ... + 1706905.

It is an arithmetic number, because the mean of its divisors is an integer number (50808288015).

Almost surely, 2^654797028085 is an apocalyptic number.

It is an amenable number.

654797028085 is a deficient number, since it is larger than the sum of its proper divisors (158135580155).

654797028085 is a wasteful number, since it uses less digits than its factorization.

654797028085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450728.

The product of its (nonzero) digits is 33868800, while the sum is 61.

The spelling of 654797028085 in words is "six hundred fifty-four billion, seven hundred ninety-seven million, twenty-eight thousand, eighty-five".