501444941187 has 16 divisors (see below), whose sum is σ = 669936303360. Its totient is φ = 333625583712.

The previous prime is 501444941119. The next prime is 501444941189. The reversal of 501444941187 is 781149444105.

It is not a de Polignac number, because 501444941187 - 2¹⁹ = 501444416899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (501444941189) 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 15 ways as a sum of consecutive naturals, for example, 4217389 + ... + 4334657.

It is an arithmetic number, because the mean of its divisors is an integer number (41871018960).

Almost surely, 2^501444941187 is an apocalyptic number.

501444941187 is a deficient number, since it is larger than the sum of its proper divisors (168491362173).

501444941187 is a wasteful number, since it uses less digits than its factorization.

501444941187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120122.

The product of its (nonzero) digits is 645120, while the sum is 48.

The spelling of 501444941187 in words is "five hundred one billion, four hundred forty-four million, nine hundred forty-one thousand, one hundred eighty-seven".