564625244465642 has 4 divisors (see below), whose sum is σ = 846937866698466. Its totient is φ = 282312622232820.

The previous prime is 564625244465641. The next prime is 564625244465753. The reversal of 564625244465642 is 246564442526465.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 558208147292041 + 6417097173601 = 23626429^2 + 2533199^2 .

It is not an unprimeable number, because it can be changed into a prime (564625244465641) 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 as a sum of consecutive naturals, namely, 141156311116409 + ... + 141156311116412.

Almost surely, 2^{564625244465642} is an apocalyptic number.

564625244465642 is a deficient number, since it is larger than the sum of its proper divisors (282312622232824).

564625244465642 is a wasteful number, since it uses less digits than its factorization.

564625244465642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282312622232823.

The product of its digits is 1327104000, while the sum is 65.

The spelling of 564625244465642 in words is "five hundred sixty-four trillion, six hundred twenty-five billion, two hundred forty-four million, four hundred sixty-five thousand, six hundred forty-two".