489097547478 has 12 divisors (see below), whose sum is σ = 1059711352908. Its totient is φ = 163032515820.

The previous prime is 489097547461. The next prime is 489097547527. The reversal of 489097547478 is 874745790984.

489097547478 is a `hidden beast` number, since 4 + 8 + 9 + 0 + 9 + 7 + 547 + 4 + 78 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13586042968 + ... + 13586043003.

It is an arithmetic number, because the mean of its divisors is an integer number (88309279409).

Almost surely, 2^489097547478 is an apocalyptic number.

489097547478 is an abundant number, since it is smaller than the sum of its proper divisors (570613805430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

489097547478 is a wasteful number, since it uses less digits than its factorization.

489097547478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27172085979 (or 27172085976 counting only the distinct ones).

The product of its (nonzero) digits is 568995840, while the sum is 72.

The spelling of 489097547478 in words is "four hundred eighty-nine billion, ninety-seven million, five hundred forty-seven thousand, four hundred seventy-eight".