564774477465 has 24 divisors (see below), whose sum is σ = 993256274304. Its totient is φ = 273830048800.

The previous prime is 564774477431. The next prime is 564774477473.

564774477465 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 564774477465 - 2²¹ = 564772380313 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 564774477396 and 564774477405.

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 23 ways as a sum of consecutive naturals, for example, 155583441 + ... + 155587070.

It is an arithmetic number, because the mean of its divisors is an integer number (41385678096).

Almost surely, 2^564774477465 is an apocalyptic number.

564774477465 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

564774477465 is a deficient number, since it is larger than the sum of its proper divisors (428481796839).

564774477465 is a wasteful number, since it uses less digits than its factorization.

564774477465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311170541 (or 311170530 counting only the distinct ones).

The product of its digits is 553190400, while the sum is 66.

The spelling of 564774477465 in words is "five hundred sixty-four billion, seven hundred seventy-four million, four hundred seventy-seven thousand, four hundred sixty-five".