4778873551 has 4 divisors (see below), whose sum is σ = 4779219312. Its totient is φ = 4778527792.

The previous prime is 4778873543. The next prime is 4778873569. The reversal of 4778873551 is 1553788774.

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

It is a cyclic number.

It is not a de Polignac number, because 4778873551 - 2³ = 4778873543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4778873492 and 4778873501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4778873051) 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, 151246 + ... + 180091.

It is an arithmetic number, because the mean of its divisors is an integer number (1194804828).

Almost surely, 2^4778873551 is an apocalyptic number.

4778873551 is a deficient number, since it is larger than the sum of its proper divisors (345761).

4778873551 is a wasteful number, since it uses less digits than its factorization.

4778873551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345760.

The product of its digits is 6585600, while the sum is 55.

The square root of 4778873551 is about 69129.3971549008. The cubic root of 4778873551 is about 1684.3868662386.

The spelling of 4778873551 in words is "four billion, seven hundred seventy-eight million, eight hundred seventy-three thousand, five hundred fifty-one".