32508478464 has 528 divisors, whose sum is σ = 113916041280. Its totient is φ = 8140554240.

The previous prime is 32508478451. The next prime is 32508478477. The reversal of 32508478464 is 46487480523.

It is an interprime number because it is at equal distance from previous prime (32508478451) and next prime (32508478477).

It is a tau number, because it is divible by the number of its divisors (528).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48018094 + ... + 48018770.

Almost surely, 2^32508478464 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 32508478464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56958020640).

32508478464 is an abundant number, since it is smaller than the sum of its proper divisors (81407562816).

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

32508478464 is a wasteful number, since it uses less digits than its factorization.

32508478464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754 (or 729 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 51.

The spelling of 32508478464 in words is "thirty-two billion, five hundred eight million, four hundred seventy-eight thousand, four hundred sixty-four".