4988621894520 has 768 divisors, whose sum is σ = 17932890931200. Its totient is φ = 1105132723200.

The previous prime is 4988621894491. The next prime is 4988621894521. The reversal of 4988621894520 is 254981268894.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4988621894521) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 3275522479 + ... + 3275524001.

It is an arithmetic number, because the mean of its divisors is an integer number (23350118400).

Almost surely, 2^{4988621894520} is an apocalyptic number.

4988621894520 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 4988621894520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8966445465600).

4988621894520 is an abundant number, since it is smaller than the sum of its proper divisors (12944269036680).

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

4988621894520 is a wasteful number, since it uses less digits than its factorization.

4988621894520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1992 (or 1977 counting only the distinct ones).

The product of its (nonzero) digits is 79626240, while the sum is 66.

The spelling of 4988621894520 in words is "four trillion, nine hundred eighty-eight billion, six hundred twenty-one million, eight hundred ninety-four thousand, five hundred twenty".