564746506233878 has 8 divisors (see below), whose sum is σ = 848803894062768. Its totient is φ = 281811874879624.

The previous prime is 564746506233859. The next prime is 564746506233901. The reversal of 564746506233878 is 878332605647465.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280689117401 + ... + 280689119412.

It is an arithmetic number, because the mean of its divisors is an integer number (106100486757846).

Almost surely, 2^{564746506233878} is an apocalyptic number.

564746506233878 is a deficient number, since it is larger than the sum of its proper divisors (284057387828890).

564746506233878 is a wasteful number, since it uses less digits than its factorization.

564746506233878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561378237318.

The product of its (nonzero) digits is 4877107200, while the sum is 74.

The spelling of 564746506233878 in words is "five hundred sixty-four trillion, seven hundred forty-six billion, five hundred six million, two hundred thirty-three thousand, eight hundred seventy-eight".