4778568481 has 4 divisors (see below), whose sum is σ = 4986332352. Its totient is φ = 4570804612.

The previous prime is 4778568461. The next prime is 4778568547. The reversal of 4778568481 is 1848658774.

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 4778568481 - 2²³ = 4770179873 is a prime.

It is a super-2 number, since 2×4778568481² = 45669433455213294722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4778568461) 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, 103881901 + ... + 103881946.

It is an arithmetic number, because the mean of its divisors is an integer number (1246583088).

Almost surely, 2^4778568481 is an apocalyptic number.

It is an amenable number.

4778568481 is a deficient number, since it is larger than the sum of its proper divisors (207763871).

4778568481 is a wasteful number, since it uses less digits than its factorization.

4778568481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207763870.

The product of its digits is 12042240, while the sum is 58.

The square root of 4778568481 is about 69127.1906054340. The cubic root of 4778568481 is about 1684.3510232845.

The spelling of 4778568481 in words is "four billion, seven hundred seventy-eight million, five hundred sixty-eight thousand, four hundred eighty-one".