63505490498 has 18 divisors (see below), whose sum is σ = 96620600907. Its totient is φ = 31304946240.

The previous prime is 63505490491. The next prime is 63505490501. The reversal of 63505490498 is 89409450536.

It can be written as a sum of positive squares in 5 ways, for example, as 8914569889 + 54590920609 = 94417^2 + 233647^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=178193.

It is a super-3 number, since 3×63505490498³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63505490491) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 26014958 + ... + 26017398.

Almost surely, 2^63505490498 is an apocalyptic number.

63505490498 is a deficient number, since it is larger than the sum of its proper divisors (33115110409).

63505490498 is an frugal number, since it uses more digits than its factorization.

63505490498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5030 (or 2516 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 53.

The spelling of 63505490498 in words is "sixty-three billion, five hundred five million, four hundred ninety thousand, four hundred ninety-eight".