489588746931 has 32 divisors (see below), whose sum is σ = 740952576000. Its totient is φ = 319388850144.

The previous prime is 489588746917. The next prime is 489588746971. The reversal of 489588746931 is 139647885984.

489588746931 is a `hidden beast` number, since 4 + 8 + 9 + 58 + 87 + 469 + 31 = 666.

It is not a de Polignac number, because 489588746931 - 2¹⁰ = 489588745907 is a prime.

It is a super-2 number, since 2×489588746931² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 489588746931.

It is not an unprimeable number, because it can be changed into a prime (489588746971) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90990 + ... + 993708.

It is an arithmetic number, because the mean of its divisors is an integer number (23154768000).

Almost surely, 2^489588746931 is an apocalyptic number.

489588746931 is a deficient number, since it is larger than the sum of its proper divisors (251363829069).

489588746931 is a wasteful number, since it uses less digits than its factorization.

489588746931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903160 (or 903154 counting only the distinct ones).

The product of its digits is 418037760, while the sum is 72.

The spelling of 489588746931 in words is "four hundred eighty-nine billion, five hundred eighty-eight million, seven hundred forty-six thousand, nine hundred thirty-one".