32751668640 has 192 divisors, whose sum is σ = 106949348352. Its totient is φ = 8416051200.

The previous prime is 32751668633. The next prime is 32751668681. The reversal of 32751668640 is 4686615723.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 32751668640.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3581514 + ... + 3590646.

It is an arithmetic number, because the mean of its divisors is an integer number (557027856).

Almost surely, 2^32751668640 is an apocalyptic number.

32751668640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32751668640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53474674176).

32751668640 is an abundant number, since it is smaller than the sum of its proper divisors (74197679712).

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

32751668640 is a wasteful number, since it uses less digits than its factorization.

32751668640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9423 (or 9415 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 32751668640 in words is "thirty-two billion, seven hundred fifty-one million, six hundred sixty-eight thousand, six hundred forty".