4655891920 has 20 divisors (see below), whose sum is σ = 10824948900. Its totient is φ = 1862356736.

The previous prime is 4655891887. The next prime is 4655891969. The reversal of 4655891920 is 291985564.

It can be written as a sum of positive squares in 2 ways, for example, as 1138927504 + 3516964416 = 33748^2 + 59304^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29099245 + ... + 29099404.

It is an arithmetic number, because the mean of its divisors is an integer number (541247445).

Almost surely, 2^4655891920 is an apocalyptic number.

4655891920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4655891920 is an abundant number, since it is smaller than the sum of its proper divisors (6169056980).

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

4655891920 is a wasteful number, since it uses less digits than its factorization.

4655891920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58198662 (or 58198656 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 49.

The square root of 4655891920 is about 68234.0964621061. The cubic root of 4655891920 is about 1669.8122011440.

The spelling of 4655891920 in words is "four billion, six hundred fifty-five million, eight hundred ninety-one thousand, nine hundred twenty".