491470787448 has 48 divisors (see below), whose sum is σ = 1334880729000. Its totient is φ = 163354178880.

The previous prime is 491470787447. The next prime is 491470787459. The reversal of 491470787448 is 844787074194.

491470787448 is a `hidden beast` number, since 4 + 91 + 470 + 7 + 8 + 74 + 4 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491470787443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9754218 + ... + 9804473.

Almost surely, 2^491470787448 is an apocalyptic number.

It is an amenable number.

491470787448 is an abundant number, since it is smaller than the sum of its proper divisors (843409941552).

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

491470787448 is a wasteful number, since it uses less digits than its factorization.

491470787448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19559052 (or 19559045 counting only the distinct ones).

The product of its (nonzero) digits is 50577408, while the sum is 63.

The spelling of 491470787448 in words is "four hundred ninety-one billion, four hundred seventy million, seven hundred eighty-seven thousand, four hundred forty-eight".