489991790476 has 24 divisors (see below), whose sum is σ = 902856976560. Its totient is φ = 232039526400.

The previous prime is 489991790437. The next prime is 489991790479. The reversal of 489991790476 is 674097199984.

It is a junction number, because it is equal to n+sod(n) for n = 489991790399 and 489991790408.

It is not an unprimeable number, because it can be changed into a prime (489991790479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 571285 + ... + 1142956.

It is an arithmetic number, because the mean of its divisors is an integer number (37619040690).

Almost surely, 2^489991790476 is an apocalyptic number.

It is an amenable number.

489991790476 is a deficient number, since it is larger than the sum of its proper divisors (412865186084).

489991790476 is a wasteful number, since it uses less digits than its factorization.

489991790476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1718025 (or 1718023 counting only the distinct ones).

The product of its (nonzero) digits is 246903552, while the sum is 73.

The spelling of 489991790476 in words is "four hundred eighty-nine billion, nine hundred ninety-one million, seven hundred ninety thousand, four hundred seventy-six".