64303454544 has 80 divisors (see below), whose sum is σ = 190022444928. Its totient is φ = 18355562496.

The previous prime is 64303454521. The next prime is 64303454549. The reversal of 64303454544 is 44545430346.

64303454544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 64303454496 and 64303454505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64303454549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281364 + ... + 455820.

Almost surely, 2^64303454544 is an apocalyptic number.

It is an amenable number.

64303454544 is an abundant number, since it is smaller than the sum of its proper divisors (125718990384).

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

64303454544 is a wasteful number, since it uses less digits than its factorization.

64303454544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175572 (or 175566 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 42.

The spelling of 64303454544 in words is "sixty-four billion, three hundred three million, four hundred fifty-four thousand, five hundred forty-four".