564778404387075 has 12 divisors (see below), whose sum is σ = 933766961920088. Its totient is φ = 301215149006400.

The previous prime is 564778404387011. The next prime is 564778404387079. The reversal of 564778404387075 is 570783404877465.

It is not a de Polignac number, because 564778404387075 - 2⁶ = 564778404387011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (75), and also a Moran number because the ratio is a prime number: 7530378725161 = 564778404387075 / (5 + 6 + 4 + 7 + 7 + 8 + 4 + 0 + 4 + 3 + 8 + 7 + 0 + 7 + 5).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 564778404386988 and 564778404387006.

It is not an unprimeable number, because it can be changed into a prime (564778404387079) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3765189362506 + ... + 3765189362655.

Almost surely, 2^{564778404387075} is an apocalyptic number.

564778404387075 is a deficient number, since it is larger than the sum of its proper divisors (368988557533013).

564778404387075 is a wasteful number, since it uses less digits than its factorization.

564778404387075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7530378725174 (or 7530378725169 counting only the distinct ones).

The product of its (nonzero) digits is 4425523200, while the sum is 75.

The spelling of 564778404387075 in words is "five hundred sixty-four trillion, seven hundred seventy-eight billion, four hundred four million, three hundred eighty-seven thousand, seventy-five".