564778404378002 has 8 divisors (see below), whose sum is σ = 874495593875712. Its totient is φ = 273279873086100.

The previous prime is 564778404377983. The next prime is 564778404378011. The reversal of 564778404378002 is 200873404877465.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 564778404378002.

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, 4554664551374 + ... + 4554664551497.

It is an arithmetic number, because the mean of its divisors is an integer number (109311949234464).

Almost surely, 2^{564778404378002} is an apocalyptic number.

564778404378002 is a deficient number, since it is larger than the sum of its proper divisors (309717189497710).

564778404378002 is a wasteful number, since it uses less digits than its factorization.

564778404378002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9109329102904.

The product of its (nonzero) digits is 252887040, while the sum is 65.

The spelling of 564778404378002 in words is "five hundred sixty-four trillion, seven hundred seventy-eight billion, four hundred four million, three hundred seventy-eight thousand, two".