487451995491 has 8 divisors (see below), whose sum is σ = 663764419584. Its totient is φ = 318053784200.

The previous prime is 487451995423. The next prime is 487451995523. The reversal of 487451995491 is 194599154784.

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

It is a cyclic number.

It is not a de Polignac number, because 487451995491 - 2¹⁰ = 487451994467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (487451985491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1728553035 + ... + 1728553316.

It is an arithmetic number, because the mean of its divisors is an integer number (82970552448).

Almost surely, 2^487451995491 is an apocalyptic number.

487451995491 is a deficient number, since it is larger than the sum of its proper divisors (176312424093).

487451995491 is a wasteful number, since it uses less digits than its factorization.

487451995491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3457106401.

The product of its digits is 65318400, while the sum is 66.

The spelling of 487451995491 in words is "four hundred eighty-seven billion, four hundred fifty-one million, nine hundred ninety-five thousand, four hundred ninety-one".