489408835990 has 32 divisors (see below), whose sum is σ = 899521977600. Its totient is φ = 191672446464.

The previous prime is 489408835973. The next prime is 489408836023. The reversal of 489408835990 is 99538804984.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2346790 + ... + 2546809.

It is an arithmetic number, because the mean of its divisors is an integer number (28110061800).

Almost surely, 2^489408835990 is an apocalyptic number.

489408835990 is a deficient number, since it is larger than the sum of its proper divisors (410113141610).

489408835990 is a wasteful number, since it uses less digits than its factorization.

489408835990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4893816.

The product of its (nonzero) digits is 89579520, while the sum is 67.

The spelling of 489408835990 in words is "four hundred eighty-nine billion, four hundred eight million, eight hundred thirty-five thousand, nine hundred ninety".