4989246478 has 16 divisors (see below), whose sum is σ = 7888013280. Its totient is φ = 2363154976.

The previous prime is 4989246473. The next prime is 4989246491. The reversal of 4989246478 is 8746429894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4989246473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 808450 + ... + 814597.

It is an arithmetic number, because the mean of its divisors is an integer number (493000830).

Almost surely, 2^4989246478 is an apocalyptic number.

4989246478 is a deficient number, since it is larger than the sum of its proper divisors (2898766802).

4989246478 is a wasteful number, since it uses less digits than its factorization.

4989246478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1623131.

The product of its digits is 27869184, while the sum is 61.

The square root of 4989246478 is about 70634.5983070620. The cubic root of 4989246478 is about 1708.7491825228.

The spelling of 4989246478 in words is "four billion, nine hundred eighty-nine million, two hundred forty-six thousand, four hundred seventy-eight".