2068643377443 has 16 divisors (see below), whose sum is σ = 2825619533856. Its totient is φ = 1345385103360.

The previous prime is 2068643377441. The next prime is 2068643377459. The reversal of 2068643377443 is 3447733468602.

It is a happy number.

It is not a de Polignac number, because 2068643377443 - 2¹ = 2068643377441 is a prime.

It is a super-2 number, since 2×2068643377443² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2068643377441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1828771 + ... + 2735267.

It is an arithmetic number, because the mean of its divisors is an integer number (176601220866).

Almost surely, 2^{2068643377443} is an apocalyptic number.

2068643377443 is a deficient number, since it is larger than the sum of its proper divisors (756976156413).

2068643377443 is a wasteful number, since it uses less digits than its factorization.

2068643377443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925094.

The product of its (nonzero) digits is 48771072, while the sum is 57.

The spelling of 2068643377443 in words is "two trillion, sixty-eight billion, six hundred forty-three million, three hundred seventy-seven thousand, four hundred forty-three".