2647261056 has 128 divisors (see below), whose sum is σ = 7935926400. Its totient is φ = 774502400.

The previous prime is 2647261033. The next prime is 2647261079. The reversal of 2647261056 is 6501627462.

It is an interprime number because it is at equal distance from previous prime (2647261033) and next prime (2647261079).

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×2647261056² = 14015982197228470272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111691 + ... + 133301.

It is an arithmetic number, because the mean of its divisors is an integer number (61999425).

Almost surely, 2^2647261056 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 2647261056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3967963200).

2647261056 is an abundant number, since it is smaller than the sum of its proper divisors (5288665344).

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

2647261056 is a wasteful number, since it uses less digits than its factorization.

2647261056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21668 (or 21656 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 2647261056 is about 51451.5408515625. The cubic root of 2647261056 is about 1383.3505813046.

The spelling of 2647261056 in words is "two billion, six hundred forty-seven million, two hundred sixty-one thousand, fifty-six".