63497181552 has 120 divisors (see below), whose sum is σ = 199112006016. Its totient is φ = 17353252224.

The previous prime is 63497181497. The next prime is 63497181589. The reversal of 63497181552 is 25518179436.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 63497181495 and 63497181504.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 532798 + ... + 640989.

Almost surely, 2^63497181552 is an apocalyptic number.

It is an amenable number.

63497181552 is an abundant number, since it is smaller than the sum of its proper divisors (135614824464).

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

63497181552 is a wasteful number, since it uses less digits than its factorization.

63497181552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173835 (or 1173822 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 51.

The spelling of 63497181552 in words is "sixty-three billion, four hundred ninety-seven million, one hundred eighty-one thousand, five hundred fifty-two".