4568778655 has 16 divisors (see below), whose sum is σ = 6266856960. Its totient is φ = 3132325152.

The previous prime is 4568778653. The next prime is 4568778659. The reversal of 4568778655 is 5568778654.

It is a cyclic number.

It is not a de Polignac number, because 4568778655 - 2¹ = 4568778653 is a prime.

It is a super-3 number, since 3×4568778655³ (a number of 30 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4568778593 and 4568778602.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 352276 + ... + 365014.

It is an arithmetic number, because the mean of its divisors is an integer number (391678560).

Almost surely, 2^4568778655 is an apocalyptic number.

4568778655 is a deficient number, since it is larger than the sum of its proper divisors (1698078305).

4568778655 is a wasteful number, since it uses less digits than its factorization.

4568778655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22998.

The product of its digits is 56448000, while the sum is 61.

The square root of 4568778655 is about 67592.7411413385. The cubic root of 4568778655 is about 1659.3323214836.

Subtracting 4568778655 from its reverse (5568778654), we obtain a palindrome (999999999).

The spelling of 4568778655 in words is "four billion, five hundred sixty-eight million, seven hundred seventy-eight thousand, six hundred fifty-five".