2179538648 has 32 divisors (see below), whose sum is σ = 4671962400. Its totient is φ = 933783552.

The previous prime is 2179538593. The next prime is 2179538651. The reversal of 2179538648 is 8468359712.

It is a self number, because there is not a number n which added to its sum of digits gives 2179538648.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287288 + ... + 294776.

It is an arithmetic number, because the mean of its divisors is an integer number (145998825).

Almost surely, 2^2179538648 is an apocalyptic number.

2179538648 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2179538648 is an abundant number, since it is smaller than the sum of its proper divisors (2492423752).

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

2179538648 is a wasteful number, since it uses less digits than its factorization.

2179538648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12699 (or 12695 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 53.

The square root of 2179538648 is about 46685.5293211933. The cubic root of 2179538648 is about 1296.5467816137.

The spelling of 2179538648 in words is "two billion, one hundred seventy-nine million, five hundred thirty-eight thousand, six hundred forty-eight".