2649784896 has 336 divisors, whose sum is σ = 8672901120. Its totient is φ = 766402560.

The previous prime is 2649784871. The next prime is 2649784903. The reversal of 2649784896 is 6984879462.

2649784896 is a `hidden beast` number, since 2 + 64 + 97 + 8 + 489 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20864385 + ... + 20864511.

Almost surely, 2^2649784896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2649784896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4336450560).

2649784896 is an abundant number, since it is smaller than the sum of its proper divisors (6023116224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2649784896 is a wasteful number, since it uses less digits than its factorization.

2649784896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 269 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 63.

The square root of 2649784896 is about 51476.0613877946. The cubic root of 2649784896 is about 1383.7900602626.

The spelling of 2649784896 in words is "two billion, six hundred forty-nine million, seven hundred eighty-four thousand, eight hundred ninety-six".