64798028559 has 12 divisors (see below), whose sum is σ = 102105984552. Its totient is φ = 39271532400.

The previous prime is 64798028551. The next prime is 64798028569. The reversal of 64798028559 is 95582089746.

64798028559 is a `hidden beast` number, since 6 + 4 + 79 + 8 + 0 + 2 + 8 + 559 = 666.

It is not a de Polignac number, because 64798028559 - 2³ = 64798028551 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64798028496 and 64798028505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64798028551) 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 11 ways as a sum of consecutive naturals, for example, 327262672 + ... + 327262869.

It is an arithmetic number, because the mean of its divisors is an integer number (8508832046).

Almost surely, 2^64798028559 is an apocalyptic number.

64798028559 is a deficient number, since it is larger than the sum of its proper divisors (37307955993).

64798028559 is a wasteful number, since it uses less digits than its factorization.

64798028559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654525558 (or 654525555 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 63.

The spelling of 64798028559 in words is "sixty-four billion, seven hundred ninety-eight million, twenty-eight thousand, five hundred fifty-nine".