2069435554649 has 4 divisors (see below), whose sum is σ = 2178353215440. Its totient is φ = 1960517893860.

The previous prime is 2069435554643. The next prime is 2069435554691. The reversal of 2069435554649 is 9464555349602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2069435554649 - 2⁸ = 2069435554393 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2069435554591 and 2069435554600.

It is not an unprimeable number, because it can be changed into a prime (2069435554643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54458830367 + ... + 54458830404.

It is an arithmetic number, because the mean of its divisors is an integer number (544588303860).

Almost surely, 2^{2069435554649} is an apocalyptic number.

It is an amenable number.

2069435554649 is a deficient number, since it is larger than the sum of its proper divisors (108917660791).

2069435554649 is a wasteful number, since it uses less digits than its factorization.

2069435554649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108917660790.

The product of its (nonzero) digits is 139968000, while the sum is 62.

The spelling of 2069435554649 in words is "two trillion, sixty-nine billion, four hundred thirty-five million, five hundred fifty-four thousand, six hundred forty-nine".