2002126105445 has 8 divisors (see below), whose sum is σ = 2403194946936. Its totient is φ = 1601271804096.

The previous prime is 2002126105429. The next prime is 2002126105523. The reversal of 2002126105445 is 5445016212002.

It can be written as a sum of positive squares in 4 ways, for example, as 651252228004 + 1350873877441 = 807002^2 + 1162271^2 .

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 2002126105445 - 2⁴ = 2002126105429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53614502 + ... + 53651831.

It is an arithmetic number, because the mean of its divisors is an integer number (300399368367).

Almost surely, 2^{2002126105445} is an apocalyptic number.

It is an amenable number.

2002126105445 is a deficient number, since it is larger than the sum of its proper divisors (401068841491).

2002126105445 is a wasteful number, since it uses less digits than its factorization.

2002126105445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107270071.

The product of its (nonzero) digits is 19200, while the sum is 32.

The spelling of 2002126105445 in words is "two trillion, two billion, one hundred twenty-six million, one hundred five thousand, four hundred forty-five".