578685505586874 has 16 divisors (see below), whose sum is σ = 1322709727055808. Its totient is φ = 165338715881952.

The previous prime is 578685505586873. The next prime is 578685505586891. The reversal of 578685505586874 is 478685505586875.

It is a super-2 number, since 2×578685505586874² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (578685505586873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6889113161707 + ... + 6889113161790.

It is an arithmetic number, because the mean of its divisors is an integer number (82669357940988).

Almost surely, 2^{578685505586874} is an apocalyptic number.

578685505586874 is an abundant number, since it is smaller than the sum of its proper divisors (744024221468934).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

578685505586874 is a wasteful number, since it uses less digits than its factorization.

578685505586874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13778226323509.

The product of its (nonzero) digits is 90316800000, while the sum is 87.

Subtracting from 578685505586874 its reverse (478685505586875), we obtain a palindrome (99999999999999).

The spelling of 578685505586874 in words is "five hundred seventy-eight trillion, six hundred eighty-five billion, five hundred five million, five hundred eighty-six thousand, eight hundred seventy-four".