4487144931 has 12 divisors (see below), whose sum is σ = 6721484952. Its totient is φ = 2991429792.

The previous prime is 4487144927. The next prime is 4487144999. The reversal of 4487144931 is 1394417844.

It is not a de Polignac number, because 4487144931 - 2² = 4487144927 is a prime.

It is a super-2 number, since 2×4487144931² = 40268939263597989522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4487144131) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 9232566 + ... + 9233051.

It is an arithmetic number, because the mean of its divisors is an integer number (560123746).

Almost surely, 2^4487144931 is an apocalyptic number.

4487144931 is a deficient number, since it is larger than the sum of its proper divisors (2234340021).

4487144931 is an equidigital number, since it uses as much as digits as its factorization.

4487144931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18465632 (or 18465620 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 4487144931 is about 66986.1547709674. The cubic root of 4487144931 is about 1649.3900323878.

The spelling of 4487144931 in words is "four billion, four hundred eighty-seven million, one hundred forty-four thousand, nine hundred thirty-one".