4568778673 has 4 divisors (see below), whose sum is σ = 4767421248. Its totient is φ = 4370136100.

The previous prime is 4568778661. The next prime is 4568778689. The reversal of 4568778673 is 3768778654.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4568778673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4568778653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99321253 + ... + 99321298.

It is an arithmetic number, because the mean of its divisors is an integer number (1191855312).

Almost surely, 2^4568778673 is an apocalyptic number.

It is an amenable number.

4568778673 is a deficient number, since it is larger than the sum of its proper divisors (198642575).

4568778673 is a wasteful number, since it uses less digits than its factorization.

4568778673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198642574.

The product of its digits is 47416320, while the sum is 61.

The square root of 4568778673 is about 67592.7412744889. The cubic root of 4568778673 is about 1659.3323236627.

The spelling of 4568778673 in words is "four billion, five hundred sixty-eight million, seven hundred seventy-eight thousand, six hundred seventy-three".