63507445040 has 120 divisors (see below), whose sum is σ = 162077178480. Its totient is φ = 23005412352.

The previous prime is 63507445031. The next prime is 63507445063. The reversal of 63507445040 is 4054470536.

It is a happy number.

63507445040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 63507444985 and 63507445003.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2910491 + ... + 2932229.

It is an arithmetic number, because the mean of its divisors is an integer number (1350643154).

Almost surely, 2^63507445040 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 63507445040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81038589240).

63507445040 is an abundant number, since it is smaller than the sum of its proper divisors (98569733440).

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

63507445040 is a wasteful number, since it uses less digits than its factorization.

63507445040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21871 (or 21812 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 38.

The spelling of 63507445040 in words is "sixty-three billion, five hundred seven million, four hundred forty-five thousand, forty".