2005626254442 has 32 divisors (see below), whose sum is σ = 4015082433600. Its totient is φ = 667903915008.

The previous prime is 2005626254389. The next prime is 2005626254449. The reversal of 2005626254442 is 2444526265002.

It is a super-2 number, since 2×2005626254442² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2005626254394 and 2005626254403.

It is not an unprimeable number, because it can be changed into a prime (2005626254449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77307909 + ... + 77333847.

It is an arithmetic number, because the mean of its divisors is an integer number (125471326050).

Almost surely, 2^{2005626254442} is an apocalyptic number.

2005626254442 is an abundant number, since it is smaller than the sum of its proper divisors (2009456179158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2005626254442 is a wasteful number, since it uses less digits than its factorization.

2005626254442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37750.

The product of its (nonzero) digits is 921600, while the sum is 42.

The spelling of 2005626254442 in words is "two trillion, five billion, six hundred twenty-six million, two hundred fifty-four thousand, four hundred forty-two".