2104961606999 has 4 divisors (see below), whose sum is σ = 2123589585936. Its totient is φ = 2086333628064.

The previous prime is 2104961606989. The next prime is 2104961607107. The reversal of 2104961606999 is 9996061694012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2104961606999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104961606989) 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 3 ways as a sum of consecutive naturals, for example, 9313989299 + ... + 9313989524.

It is an arithmetic number, because the mean of its divisors is an integer number (530897396484).

Almost surely, 2^{2104961606999} is an apocalyptic number.

2104961606999 is a deficient number, since it is larger than the sum of its proper divisors (18627978937).

2104961606999 is a wasteful number, since it uses less digits than its factorization.

2104961606999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18627978936.

The product of its (nonzero) digits is 11337408, while the sum is 62.

The spelling of 2104961606999 in words is "two trillion, one hundred four billion, nine hundred sixty-one million, six hundred six thousand, nine hundred ninety-nine".