4051045415421 has 6 divisors (see below), whose sum is σ = 5851510044510. Its totient is φ = 2700696943608.

The previous prime is 4051045415401. The next prime is 4051045415423. The reversal of 4051045415421 is 1245145401504.

4051045415421 is a `hidden beast` number, since 4 + 0 + 5 + 104 + 5 + 4 + 1 + 542 + 1 = 666.

4051045415421 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3579645080025 + 471400335396 = 1891995^2 + 686586^2 .

It is not a de Polignac number, because 4051045415421 - 2¹⁸ = 4051045153277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4051045415423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 225058078626 + ... + 225058078643.

It is an arithmetic number, because the mean of its divisors is an integer number (975251674085).

Almost surely, 2^{4051045415421} is an apocalyptic number.

It is an amenable number.

4051045415421 is a deficient number, since it is larger than the sum of its proper divisors (1800464629089).

4051045415421 is a wasteful number, since it uses less digits than its factorization.

4051045415421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450116157275 (or 450116157272 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 36.

The spelling of 4051045415421 in words is "four trillion, fifty-one billion, forty-five million, four hundred fifteen thousand, four hundred twenty-one".