4979779800 has 96 divisors (see below), whose sum is σ = 15470438400. Its totient is φ = 1325092480.

The previous prime is 4979779769. The next prime is 4979779811. The reversal of 4979779800 is 89779794.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 278737 + ... + 296063.

It is an arithmetic number, because the mean of its divisors is an integer number (161150400).

Almost surely, 2^4979779800 is an apocalyptic number.

4979779800 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4979779800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7735219200).

4979779800 is an abundant number, since it is smaller than the sum of its proper divisors (10490658600).

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

4979779800 is a wasteful number, since it uses less digits than its factorization.

4979779800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17825 (or 17816 counting only the distinct ones).

The product of its (nonzero) digits is 8001504, while the sum is 60.

The square root of 4979779800 is about 70567.5548676586. The cubic root of 4979779800 is about 1707.6677620354.

The spelling of 4979779800 in words is "four billion, nine hundred seventy-nine million, seven hundred seventy-nine thousand, eight hundred".