564778404387076 has 12 divisors (see below), whose sum is σ = 1078213317466320. Its totient is φ = 256717456539560.

The previous prime is 564778404387011. The next prime is 564778404387079. The reversal of 564778404387076 is 670783404877465.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 564778404386993 and 564778404387011.

It is not an unprimeable number, because it can be changed into a prime (564778404387079) 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 3 ways as a sum of consecutive naturals, for example, 6417936413446 + ... + 6417936413533.

It is an arithmetic number, because the mean of its divisors is an integer number (89851109788860).

Almost surely, 2^{564778404387076} is an apocalyptic number.

It is an amenable number.

564778404387076 is a deficient number, since it is larger than the sum of its proper divisors (513434913079244).

564778404387076 is a wasteful number, since it uses less digits than its factorization.

564778404387076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12835872826994 (or 12835872826992 counting only the distinct ones).

The product of its (nonzero) digits is 5310627840, while the sum is 76.

The spelling of 564778404387076 in words is "five hundred sixty-four trillion, seven hundred seventy-eight billion, four hundred four million, three hundred eighty-seven thousand, seventy-six".