4988861820 has 384 divisors, whose sum is σ = 17098905600. Its totient is φ = 1202688000.

The previous prime is 4988861819. The next prime is 4988861869. The reversal of 4988861820 is 281688894.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 33038745 + ... + 33038895.

It is an arithmetic number, because the mean of its divisors is an integer number (44528400).

Almost surely, 2^4988861820 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4988861820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8549452800).

4988861820 is an abundant number, since it is smaller than the sum of its proper divisors (12110043780).

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

4988861820 is a wasteful number, since it uses less digits than its factorization.

4988861820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 54.

The square root of 4988861820 is about 70631.8753821531. The cubic root of 4988861820 is about 1708.7052680133.

The spelling of 4988861820 in words is "four billion, nine hundred eighty-eight million, eight hundred sixty-one thousand, eight hundred twenty".