64471588428 has 96 divisors (see below), whose sum is σ = 165896156160. Its totient is φ = 19363276800.

The previous prime is 64471588427. The next prime is 64471588439. The reversal of 64471588428 is 82488517446.

64471588428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-5 number, since 5×64471588428⁵ (a number of 55 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (64471588421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2767228 + ... + 2790428.

It is an arithmetic number, because the mean of its divisors is an integer number (1728084960).

Almost surely, 2^64471588428 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 64471588428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82948078080).

64471588428 is an abundant number, since it is smaller than the sum of its proper divisors (101424567732).

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

64471588428 is a wasteful number, since it uses less digits than its factorization.

64471588428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23647 (or 23645 counting only the distinct ones).

The product of its digits is 13762560, while the sum is 57.

The spelling of 64471588428 in words is "sixty-four billion, four hundred seventy-one million, five hundred eighty-eight thousand, four hundred twenty-eight".