63261499752 has 288 divisors, whose sum is σ = 192931502400. Its totient is φ = 18707335680.

The previous prime is 63261499739. The next prime is 63261499789. The reversal of 63261499752 is 25799416236.

63261499752 is a `hidden beast` number, since 63 + 26 + 1 + 499 + 75 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 64355053 + ... + 64356035.

It is an arithmetic number, because the mean of its divisors is an integer number (669901050).

Almost surely, 2^63261499752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63261499752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96465751200).

63261499752 is an abundant number, since it is smaller than the sum of its proper divisors (129670002648).

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

63261499752 is a wasteful number, since it uses less digits than its factorization.

63261499752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189 (or 1171 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 54.

The spelling of 63261499752 in words is "sixty-three billion, two hundred sixty-one million, four hundred ninety-nine thousand, seven hundred fifty-two".