489991320102 has 8 divisors (see below), whose sum is σ = 979982640216. Its totient is φ = 163330440032.

The previous prime is 489991320101. The next prime is 489991320157. The reversal of 489991320102 is 201023199984.

It is a sphenic number, since it is the product of 3 distinct primes.

489991320102 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489991320101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40832610003 + ... + 40832610014.

It is an arithmetic number, because the mean of its divisors is an integer number (122497830027).

Almost surely, 2^489991320102 is an apocalyptic number.

489991320102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

489991320102 is a wasteful number, since it uses less digits than its factorization.

489991320102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81665220022.

The product of its (nonzero) digits is 279936, while the sum is 48.

The spelling of 489991320102 in words is "four hundred eighty-nine billion, nine hundred ninety-one million, three hundred twenty thousand, one hundred two".