4687557798 has 128 divisors (see below), whose sum is σ = 12678736896. Its totient is φ = 1117900800.

The previous prime is 4687557733. The next prime is 4687557827. The reversal of 4687557798 is 8977557864.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 314736 + ... + 329292.

It is an arithmetic number, because the mean of its divisors is an integer number (99052632).

Almost surely, 2^4687557798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4687557798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6339368448).

4687557798 is an abundant number, since it is smaller than the sum of its proper divisors (7991179098).

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

4687557798 is a wasteful number, since it uses less digits than its factorization.

4687557798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14638.

The product of its digits is 118540800, while the sum is 66.

The square root of 4687557798 is about 68465.7417837563. The cubic root of 4687557798 is about 1673.5892537346.

Adding to 4687557798 its sum of digits (66), we get a palindrome (4687557864).

The spelling of 4687557798 in words is "four billion, six hundred eighty-seven million, five hundred fifty-seven thousand, seven hundred ninety-eight".