2047861728 has 72 divisors (see below), whose sum is σ = 6353035416. Its totient is φ = 620563200.

The previous prime is 2047861703. The next prime is 2047861729. The reversal of 2047861728 is 8271687402.

2047861728 is a `hidden beast` number, since 2 + 0 + 4 + 7 + 8 + 617 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2047861729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 320043 + ... + 326378.

It is an arithmetic number, because the mean of its divisors is an integer number (88236603).

Almost surely, 2^2047861728 is an apocalyptic number.

It is an amenable number.

2047861728 is an abundant number, since it is smaller than the sum of its proper divisors (4305173688).

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

2047861728 is a wasteful number, since it uses less digits than its factorization.

2047861728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646448 (or 646437 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The square root of 2047861728 is about 45253.3062659514. The cubic root of 2047861728 is about 1269.8922610982.

The spelling of 2047861728 in words is "two billion, forty-seven million, eight hundred sixty-one thousand, seven hundred twenty-eight".