4981767720 has 128 divisors (see below), whose sum is σ = 15965216640. Its totient is φ = 1239203840.

The previous prime is 4981767677. The next prime is 4981767751. The reversal of 4981767720 is 277671894.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 219715 + ... + 241325.

It is an arithmetic number, because the mean of its divisors is an integer number (124728255).

Almost surely, 2^4981767720 is an apocalyptic number.

4981767720 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 4981767720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7982608320).

4981767720 is an abundant number, since it is smaller than the sum of its proper divisors (10983448920).

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

4981767720 is a wasteful number, since it uses less digits than its factorization.

4981767720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21755 (or 21751 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 51.

The square root of 4981767720 is about 70581.6386888261. The cubic root of 4981767720 is about 1707.8949645365.

The spelling of 4981767720 in words is "four billion, nine hundred eighty-one million, seven hundred sixty-seven thousand, seven hundred twenty".