4781404821 has 16 divisors (see below), whose sum is σ = 6509151936. Its totient is φ = 3121310976.

The previous prime is 4781404811. The next prime is 4781404843. The reversal of 4781404821 is 1284041874.

It is not a de Polignac number, because 4781404821 - 2⁶ = 4781404757 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4781404821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4781404811) 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 in 15 ways as a sum of consecutive naturals, for example, 56830 + ... + 113103.

It is an arithmetic number, because the mean of its divisors is an integer number (406821996).

Almost surely, 2^4781404821 is an apocalyptic number.

It is an amenable number.

4781404821 is a deficient number, since it is larger than the sum of its proper divisors (1727747115).

4781404821 is a wasteful number, since it uses less digits than its factorization.

4781404821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170132.

The product of its (nonzero) digits is 57344, while the sum is 39.

The square root of 4781404821 is about 69147.7029336478. The cubic root of 4781404821 is about 1684.6842086515.

The spelling of 4781404821 in words is "four billion, seven hundred eighty-one million, four hundred four thousand, eight hundred twenty-one".