4987111644 has 36 divisors (see below), whose sum is σ = 12819981720. Its totient is φ = 1634194080.

The previous prime is 4987111631. The next prime is 4987111681. The reversal of 4987111644 is 4461117894.

4987111644 is a `hidden beast` number, since 498 + 7 + 1 + 116 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 4987111644.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1171867 + ... + 1176114.

Almost surely, 2^4987111644 is an apocalyptic number.

It is an amenable number.

4987111644 is an abundant number, since it is smaller than the sum of its proper divisors (7832870076).

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

4987111644 is a wasteful number, since it uses less digits than its factorization.

4987111644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2348050 (or 2348045 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 4987111644 is about 70619.4848749267. The cubic root of 4987111644 is about 1708.5054305328.

The spelling of 4987111644 in words is "four billion, nine hundred eighty-seven million, one hundred eleven thousand, six hundred forty-four".