63645123430 has 48 divisors (see below), whose sum is σ = 141104236896. Its totient is φ = 20537583360.

The previous prime is 63645123401. The next prime is 63645123433. The reversal of 63645123430 is 3432154636.

63645123430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 63645123430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63645123433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3811906 + ... + 3828565.

It is an arithmetic number, because the mean of its divisors is an integer number (2939671602).

Almost surely, 2^63645123430 is an apocalyptic number.

63645123430 is an abundant number, since it is smaller than the sum of its proper divisors (77459113466).

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

63645123430 is a wasteful number, since it uses less digits than its factorization.

63645123430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7640509 (or 7640502 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 37.

The spelling of 63645123430 in words is "sixty-three billion, six hundred forty-five million, one hundred twenty-three thousand, four hundred thirty".