4644681545 has 32 divisors (see below), whose sum is σ = 6429466368. Its totient is φ = 3155217408.

The previous prime is 4644681539. The next prime is 4644681551. The reversal of 4644681545 is 5451864464.

It is an interprime number because it is at equal distance from previous prime (4644681539) and next prime (4644681551).

It is not a de Polignac number, because 4644681545 - 2⁴ = 4644681529 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4644681545.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4233437 + ... + 4234533.

It is an arithmetic number, because the mean of its divisors is an integer number (200920824).

Almost surely, 2^4644681545 is an apocalyptic number.

It is an amenable number.

4644681545 is a deficient number, since it is larger than the sum of its proper divisors (1784784823).

4644681545 is a wasteful number, since it uses less digits than its factorization.

4644681545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2129.

The product of its digits is 1843200, while the sum is 47.

The square root of 4644681545 is about 68151.9005237565. The cubic root of 4644681545 is about 1668.4709425594.

The spelling of 4644681545 in words is "four billion, six hundred forty-four million, six hundred eighty-one thousand, five hundred forty-five".