2005433534421 has 6 divisors (see below), whose sum is σ = 2896737327510. Its totient is φ = 1336955689608.

The previous prime is 2005433534281. The next prime is 2005433534431. The reversal of 2005433534421 is 1244353345002.

2005433534421 is a `hidden beast` number, since 2 + 0 + 0 + 54 + 33 + 534 + 42 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1871506080900 + 133927453521 = 1368030^2 + 365961^2 .

It is not a de Polignac number, because 2005433534421 - 2¹⁸ = 2005433272277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005433534431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111412974126 + ... + 111412974143.

It is an arithmetic number, because the mean of its divisors is an integer number (482789554585).

Almost surely, 2^{2005433534421} is an apocalyptic number.

It is an amenable number.

2005433534421 is a deficient number, since it is larger than the sum of its proper divisors (891303793089).

2005433534421 is a wasteful number, since it uses less digits than its factorization.

2005433534421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222825948275 (or 222825948272 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

Adding to 2005433534421 its reverse (1244353345002), we get a palindrome (3249786879423).

The spelling of 2005433534421 in words is "two trillion, five billion, four hundred thirty-three million, five hundred thirty-four thousand, four hundred twenty-one".