63497831487 has 8 divisors (see below), whose sum is σ = 84667887360. Its totient is φ = 42329831640.

The previous prime is 63497831483. The next prime is 63497831521. The reversal of 63497831487 is 78413879436.

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

It is not a de Polignac number, because 63497831487 - 2² = 63497831483 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63497831487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63497831483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440439 + ... + 566552.

It is an arithmetic number, because the mean of its divisors is an integer number (10583485920).

Almost surely, 2^63497831487 is an apocalyptic number.

63497831487 is a deficient number, since it is larger than the sum of its proper divisors (21170055873).

63497831487 is a wasteful number, since it uses less digits than its factorization.

63497831487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028013.

The product of its digits is 24385536, while the sum is 60.

The spelling of 63497831487 in words is "sixty-three billion, four hundred ninety-seven million, eight hundred thirty-one thousand, four hundred eighty-seven".