2104663499 has 4 divisors (see below), whose sum is σ = 2105792664. Its totient is φ = 2103534336.

The previous prime is 2104663493. The next prime is 2104663513. The reversal of 2104663499 is 9943664012.

It is a happy number.

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-2104663499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2104663493) 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, 561782 + ... + 565515.

It is an arithmetic number, because the mean of its divisors is an integer number (526448166).

Almost surely, 2^2104663499 is an apocalyptic number.

2104663499 is a deficient number, since it is larger than the sum of its proper divisors (1129165).

2104663499 is a wasteful number, since it uses less digits than its factorization.

2104663499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129164.

The product of its (nonzero) digits is 279936, while the sum is 44.

The square root of 2104663499 is about 45876.6116774114. The cubic root of 2104663499 is about 1281.5263974344.

The spelling of 2104663499 in words is "two billion, one hundred four million, six hundred sixty-three thousand, four hundred ninety-nine".