4705780241821 has 4 divisors (see below), whose sum is σ = 4706073033372. Its totient is φ = 4705487450272.

The previous prime is 4705780241777. The next prime is 4705780241861. The reversal of 4705780241821 is 1281420875074.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2678659228921 + 2027121012900 = 1636661^2 + 1423770^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4705780241821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4705780241861) 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, 146371666 + ... + 146403811.

It is an arithmetic number, because the mean of its divisors is an integer number (1176518258343).

Almost surely, 2^{4705780241821} is an apocalyptic number.

It is an amenable number.

4705780241821 is a deficient number, since it is larger than the sum of its proper divisors (292791551).

4705780241821 is a wasteful number, since it uses less digits than its factorization.

4705780241821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292791550.

The product of its (nonzero) digits is 1003520, while the sum is 49.

The spelling of 4705780241821 in words is "four trillion, seven hundred five billion, seven hundred eighty million, two hundred forty-one thousand, eight hundred twenty-one".