63747063632 has 80 divisors (see below), whose sum is σ = 146150645760. Its totient is φ = 26354786304.

The previous prime is 63747063629. The next prime is 63747063643. The reversal of 63747063632 is 23636074736.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3944753 + ... + 3960879.

It is an arithmetic number, because the mean of its divisors is an integer number (1826883072).

Almost surely, 2^63747063632 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 63747063632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73075322880).

63747063632 is an abundant number, since it is smaller than the sum of its proper divisors (82403582128).

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

63747063632 is a wasteful number, since it uses less digits than its factorization.

63747063632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17388 (or 17382 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 47.

The spelling of 63747063632 in words is "sixty-three billion, seven hundred forty-seven million, sixty-three thousand, six hundred thirty-two".