4921205886 has 12 divisors (see below), whose sum is σ = 10662612792. Its totient is φ = 1640401956.

The previous prime is 4921205819. The next prime is 4921205893. The reversal of 4921205886 is 6885021294.

4921205886 is a `hidden beast` number, since 49 + 2 + 1 + 20 + 588 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 136700146 + ... + 136700181.

It is an arithmetic number, because the mean of its divisors is an integer number (888551066).

Almost surely, 2^4921205886 is an apocalyptic number.

4921205886 is an abundant number, since it is smaller than the sum of its proper divisors (5741406906).

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

4921205886 is a wasteful number, since it uses less digits than its factorization.

4921205886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273400335 (or 273400332 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 4921205886 is about 70151.3070868961. The cubic root of 4921205886 is about 1700.9459425186.

The spelling of 4921205886 in words is "four billion, nine hundred twenty-one million, two hundred five thousand, eight hundred eighty-six".