32178271972 has 192 divisors, whose sum is σ = 73588838400. Its totient is φ = 12302912160.

The previous prime is 32178271949. The next prime is 32178271987. The reversal of 32178271972 is 27917287123.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 122350713 + ... + 122350975.

It is an arithmetic number, because the mean of its divisors is an integer number (383275200).

Almost surely, 2^32178271972 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 32178271972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36794419200).

32178271972 is an abundant number, since it is smaller than the sum of its proper divisors (41410566428).

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

32178271972 is a wasteful number, since it uses less digits than its factorization.

32178271972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388 (or 350 counting only the distinct ones).

The product of its digits is 592704, while the sum is 49.

The spelling of 32178271972 in words is "thirty-two billion, one hundred seventy-eight million, two hundred seventy-one thousand, nine hundred seventy-two".