2647533768 has 128 divisors (see below), whose sum is σ = 7382845440. Its totient is φ = 784448000.

The previous prime is 2647533731. The next prime is 2647533787. The reversal of 2647533768 is 8673357462.

It is a self number, because there is not a number n which added to its sum of digits gives 2647533768.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2567413 + ... + 2568443.

It is an arithmetic number, because the mean of its divisors is an integer number (57678480).

Almost surely, 2^2647533768 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 2647533768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3691422720).

2647533768 is an abundant number, since it is smaller than the sum of its proper divisors (4735311672).

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

2647533768 is a wasteful number, since it uses less digits than its factorization.

2647533768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259 (or 1255 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 51.

The square root of 2647533768 is about 51454.1909663343. The cubic root of 2647533768 is about 1383.3980823937.

The spelling of 2647533768 in words is "two billion, six hundred forty-seven million, five hundred thirty-three thousand, seven hundred sixty-eight".