4987557894 has 64 divisors (see below), whose sum is σ = 11201184000. Its totient is φ = 1467227520.

The previous prime is 4987557881. The next prime is 4987557929.

4987557894 is nontrivially palindromic in base 10.

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 polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1216512 + ... + 1220604.

It is an arithmetic number, because the mean of its divisors is an integer number (175018500).

Almost surely, 2^4987557894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4987557894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5600592000).

4987557894 is an abundant number, since it is smaller than the sum of its proper divisors (6213626106).

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

4987557894 is a wasteful number, since it uses less digits than its factorization.

4987557894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4645.

The product of its digits is 101606400, while the sum is 66.

The square root of 4987557894 is about 70622.6443430151. The cubic root of 4987557894 is about 1708.5563884061.

The spelling of 4987557894 in words is "four billion, nine hundred eighty-seven million, five hundred fifty-seven thousand, eight hundred ninety-four".