4997809886 has 16 divisors (see below), whose sum is σ = 7830687744. Its totient is φ = 2387803704.

The previous prime is 4997809823. The next prime is 4997809897. The reversal of 4997809886 is 6889087994.

It is a happy number.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 10046 + ... + 100481.

It is an arithmetic number, because the mean of its divisors is an integer number (489417984).

Almost surely, 2^4997809886 is an apocalyptic number.

4997809886 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

4997809886 is a deficient number, since it is larger than the sum of its proper divisors (2832877858).

4997809886 is a wasteful number, since it uses less digits than its factorization.

4997809886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111535.

The product of its (nonzero) digits is 62705664, while the sum is 68.

The square root of 4997809886 is about 70695.1899778196. The cubic root of 4997809886 is about 1709.7262407301.

The spelling of 4997809886 in words is "four billion, nine hundred ninety-seven million, eight hundred nine thousand, eight hundred eighty-six".