4566781651 has 4 divisors (see below), whose sum is σ = 4807138600. Its totient is φ = 4326424704.

The previous prime is 4566781643. The next prime is 4566781663. The reversal of 4566781651 is 1561876654.

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 4566781651 - 2³ = 4566781643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4566781595 and 4566781604.

It is not an unprimeable number, because it can be changed into a prime (4566781601) 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, 120178446 + ... + 120178483.

It is an arithmetic number, because the mean of its divisors is an integer number (1201784650).

Almost surely, 2^4566781651 is an apocalyptic number.

4566781651 is a deficient number, since it is larger than the sum of its proper divisors (240356949).

4566781651 is a wasteful number, since it uses less digits than its factorization.

4566781651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240356948.

The product of its digits is 1209600, while the sum is 49.

The square root of 4566781651 is about 67577.9672008562. The cubic root of 4566781651 is about 1659.0905226387.

It can be divided in two parts, 456678 and 1651, that added together give a square (458329 = 677²).

The spelling of 4566781651 in words is "four billion, five hundred sixty-six million, seven hundred eighty-one thousand, six hundred fifty-one".