489962148191 has 4 divisors (see below), whose sum is σ = 489977322000. Its totient is φ = 489946974384.

The previous prime is 489962148187. The next prime is 489962148227. The reversal of 489962148191 is 191841269984.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 489962148191 - 2² = 489962148187 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489962148121) 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, 7538366 + ... + 7603083.

It is an arithmetic number, because the mean of its divisors is an integer number (122494330500).

Almost surely, 2^489962148191 is an apocalyptic number.

489962148191 is a deficient number, since it is larger than the sum of its proper divisors (15173809).

489962148191 is a wasteful number, since it uses less digits than its factorization.

489962148191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15173808.

The product of its digits is 8957952, while the sum is 62.

The spelling of 489962148191 in words is "four hundred eighty-nine billion, nine hundred sixty-two million, one hundred forty-eight thousand, one hundred ninety-one".