4053678821 has 2 divisors, whose sum is σ = 4053678822. Its totient is φ = 4053678820.

The previous prime is 4053678809. The next prime is 4053678833. The reversal of 4053678821 is 1288763504.

It is a balanced prime because it is at equal distance from previous prime (4053678809) and next prime (4053678833).

It can be written as a sum of positive squares in only one way, i.e., 4014616321 + 39062500 = 63361^2 + 6250^2 .

It is a cyclic number.

It is not a de Polignac number, because 4053678821 - 2¹⁸ = 4053416677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4053678851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2026839410 + 2026839411.

It is an arithmetic number, because the mean of its divisors is an integer number (2026839411).

Almost surely, 2^4053678821 is an apocalyptic number.

It is an amenable number.

4053678821 is a deficient number, since it is larger than the sum of its proper divisors (1).

4053678821 is an equidigital number, since it uses as much as digits as its factorization.

4053678821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 322560, while the sum is 44.

The square root of 4053678821 is about 63668.5072936377. The cubic root of 4053678821 is about 1594.4703411290.

The spelling of 4053678821 in words is "four billion, fifty-three million, six hundred seventy-eight thousand, eight hundred twenty-one".