2648979648 has 84 divisors (see below), whose sum is σ = 8677523920. Its totient is φ = 756850176.

The previous prime is 2648979637. The next prime is 2648979649. The reversal of 2648979648 is 8469798462.

2648979648 is a `hidden beast` number, since 26 + 489 + 7 + 96 + 48 = 666.

It is a tau number, because it is divible by the number of its divisors (84).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (2648979649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 324463 + ... + 332526.

Almost surely, 2^2648979648 is an apocalyptic number.

2648979648 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2648979648 is an abundant number, since it is smaller than the sum of its proper divisors (6028544272).

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

2648979648 is a wasteful number, since it uses less digits than its factorization.

2648979648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657014 (or 657001 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 63.

The square root of 2648979648 is about 51468.2392160447. The cubic root of 2648979648 is about 1383.6498718931.

The spelling of 2648979648 in words is "two billion, six hundred forty-eight million, nine hundred seventy-nine thousand, six hundred forty-eight".