2012477571421 has 8 divisors (see below), whose sum is σ = 2133898358904. Its totient is φ = 1891394534400.

The previous prime is 2012477571407. The next prime is 2012477571437. The reversal of 2012477571421 is 1241757742102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 595868205625 + 1416609365796 = 771925^2 + 1190214^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2012477571421 - 2¹⁷ = 2012477440349 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 (2012477571721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84425340 + ... + 84449173.

It is an arithmetic number, because the mean of its divisors is an integer number (266737294863).

Almost surely, 2^{2012477571421} is an apocalyptic number.

It is an amenable number.

2012477571421 is a deficient number, since it is larger than the sum of its proper divisors (121420787483).

2012477571421 is a wasteful number, since it uses less digits than its factorization.

2012477571421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168875231.

The product of its (nonzero) digits is 219520, while the sum is 43.

The spelling of 2012477571421 in words is "two trillion, twelve billion, four hundred seventy-seven million, five hundred seventy-one thousand, four hundred twenty-one".