578491209655 has 16 divisors (see below), whose sum is σ = 697363640064. Its totient is φ = 460677208320.

The previous prime is 578491209641. The next prime is 578491209671. The reversal of 578491209655 is 556902194875.

It is not a de Polignac number, because 578491209655 - 2²³ = 578482821047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 578491209593 and 578491209602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25121707 + ... + 25144723.

It is an arithmetic number, because the mean of its divisors is an integer number (43585227504).

Almost surely, 2^578491209655 is an apocalyptic number.

578491209655 is a deficient number, since it is larger than the sum of its proper divisors (118872430409).

578491209655 is a wasteful number, since it uses less digits than its factorization.

578491209655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45786.

The product of its (nonzero) digits is 27216000, while the sum is 61.

The spelling of 578491209655 in words is "five hundred seventy-eight billion, four hundred ninety-one million, two hundred nine thousand, six hundred fifty-five".