3021812445461 has 4 divisors (see below), whose sum is σ = 3021838760652. Its totient is φ = 3021786130272.

The previous prime is 3021812445439. The next prime is 3021812445481. The reversal of 3021812445461 is 1645442181203.

It is a happy number.

3021812445461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2850039498436 + 171772947025 = 1688206^2 + 414455^2 .

It is a cyclic number.

It is not a de Polignac number, because 3021812445461 - 2⁶ = 3021812445397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3021812445481) 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, 12984590 + ... + 13215263.

It is an arithmetic number, because the mean of its divisors is an integer number (755459690163).

Almost surely, 2^{3021812445461} is an apocalyptic number.

It is an amenable number.

3021812445461 is a deficient number, since it is larger than the sum of its proper divisors (26315191).

3021812445461 is a wasteful number, since it uses less digits than its factorization.

3021812445461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26315190.

The product of its (nonzero) digits is 184320, while the sum is 41.

The spelling of 3021812445461 in words is "three trillion, twenty-one billion, eight hundred twelve million, four hundred forty-five thousand, four hundred sixty-one".