4890747820 has 192 divisors, whose sum is σ = 12741120000. Its totient is φ = 1571851008.

The previous prime is 4890747817. The next prime is 4890747863. The reversal of 4890747820 is 287470984.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20463261 + ... + 20463499.

It is an arithmetic number, because the mean of its divisors is an integer number (66360000).

Almost surely, 2^4890747820 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 4890747820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6370560000).

4890747820 is an abundant number, since it is smaller than the sum of its proper divisors (7850372180).

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

4890747820 is a wasteful number, since it uses less digits than its factorization.

4890747820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445 (or 429 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 49.

The square root of 4890747820 is about 69933.8817741444. The cubic root of 4890747820 is about 1697.4295432548.

The spelling of 4890747820 in words is "four billion, eight hundred ninety million, seven hundred forty-seven thousand, eight hundred twenty".