2649650976 has 144 divisors (see below), whose sum is σ = 8633072448. Its totient is φ = 755136000.

The previous prime is 2649650963. The next prime is 2649650977. The reversal of 2649650976 is 6790569462.

2649650976 is a `hidden beast` number, since 2 + 64 + 9 + 6 + 509 + 76 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (2649650977) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 927951 + ... + 930801.

It is an arithmetic number, because the mean of its divisors is an integer number (59951892).

Almost surely, 2^2649650976 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 2649650976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4316536224).

2649650976 is an abundant number, since it is smaller than the sum of its proper divisors (5983421472).

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

2649650976 is a wasteful number, since it uses less digits than its factorization.

2649650976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3335 (or 3324 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 54.

The square root of 2649650976 is about 51474.7605725369. The cubic root of 2649650976 is about 1383.7667476424.

The spelling of 2649650976 in words is "two billion, six hundred forty-nine million, six hundred fifty thousand, nine hundred seventy-six".