4487521894 has 16 divisors (see below), whose sum is σ = 6791756400. Its totient is φ = 2223677664.

The previous prime is 4487521877. The next prime is 4487521933. The reversal of 4487521894 is 4981257844.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103777 + ... + 140515.

It is an arithmetic number, because the mean of its divisors is an integer number (424484775).

Almost surely, 2^4487521894 is an apocalyptic number.

4487521894 is a deficient number, since it is larger than the sum of its proper divisors (2304234506).

4487521894 is a wasteful number, since it uses less digits than its factorization.

4487521894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37287.

The product of its digits is 2580480, while the sum is 52.

The square root of 4487521894 is about 66988.9684500366. The cubic root of 4487521894 is about 1649.4362192627.

The spelling of 4487521894 in words is "four billion, four hundred eighty-seven million, five hundred twenty-one thousand, eight hundred ninety-four".