32121387480 has 512 divisors, whose sum is σ = 122072832000. Its totient is φ = 6718666752.

The previous prime is 32121387469. The next prime is 32121387499. The reversal of 32121387480 is 8478312123.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 92568667 + ... + 92569013.

It is an arithmetic number, because the mean of its divisors is an integer number (238423500).

Almost surely, 2^32121387480 is an apocalyptic number.

32121387480 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 32121387480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61036416000).

32121387480 is an abundant number, since it is smaller than the sum of its proper divisors (89951444520).

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

32121387480 is a wasteful number, since it uses less digits than its factorization.

32121387480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568 (or 550 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The spelling of 32121387480 in words is "thirty-two billion, one hundred twenty-one million, three hundred eighty-seven thousand, four hundred eighty".