2649969528 has 64 divisors (see below), whose sum is σ = 6940830720. Its totient is φ = 842054400.

The previous prime is 2649969457. The next prime is 2649969547. The reversal of 2649969528 is 8259699462.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23268 + ... + 76428.

It is an arithmetic number, because the mean of its divisors is an integer number (108450480).

Almost surely, 2^2649969528 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 2649969528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3470415360).

2649969528 is an abundant number, since it is smaller than the sum of its proper divisors (4290861192).

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

2649969528 is a wasteful number, since it uses less digits than its factorization.

2649969528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53268 (or 53264 counting only the distinct ones).

The product of its digits is 16796160, while the sum is 60.

The square root of 2649969528 is about 51477.8547338562. The cubic root of 2649969528 is about 1383.8221994742.

The spelling of 2649969528 in words is "two billion, six hundred forty-nine million, nine hundred sixty-nine thousand, five hundred twenty-eight".