4778093927689 has 4 divisors (see below), whose sum is σ = 4778132034256. Its totient is φ = 4778055821124.

The previous prime is 4778093927657. The next prime is 4778093927693. The reversal of 4778093927689 is 9867293908774.

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 not a de Polignac number, because 4778093927689 - 2⁵ = 4778093927657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4778093927389) 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, 18864579 + ... + 19116184.

It is an arithmetic number, because the mean of its divisors is an integer number (1194533008564).

Almost surely, 2^{4778093927689} is an apocalyptic number.

It is an amenable number.

4778093927689 is a deficient number, since it is larger than the sum of its proper divisors (38106567).

4778093927689 is a wasteful number, since it uses less digits than its factorization.

4778093927689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38106566.

The product of its (nonzero) digits is 2304433152, while the sum is 79.

The spelling of 4778093927689 in words is "four trillion, seven hundred seventy-eight billion, ninety-three million, nine hundred twenty-seven thousand, six hundred eighty-nine".