2720511648 has 36 divisors (see below), whose sum is σ = 7736455818. Its totient is φ = 906837120.

The previous prime is 2720511643. The next prime is 2720511709. The reversal of 2720511648 is 8461150272.

2720511648 is a `hidden beast` number, since 2 + 7 + 2 + 0 + 5 + 1 + 1 + 648 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2189116944 + 531394704 = 46788^2 + 23052^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2720511641) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4722823 + ... + 4723398.

Almost surely, 2^2720511648 is an apocalyptic number.

It is an amenable number.

2720511648 is an abundant number, since it is smaller than the sum of its proper divisors (5015944170).

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

2720511648 is a wasteful number, since it uses less digits than its factorization.

2720511648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9446237 (or 9446226 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 2720511648 is about 52158.5242122513. The cubic root of 2720511648 is about 1395.9939299632.

The spelling of 2720511648 in words is "two billion, seven hundred twenty million, five hundred eleven thousand, six hundred forty-eight".