32172866880 has 672 divisors, whose sum is σ = 131169290112. Its totient is φ = 6606028800.

The previous prime is 32172866879. The next prime is 32172867019. The reversal of 32172866880 is 8866827123.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (672).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 50191360 + ... + 50192000.

It is an arithmetic number, because the mean of its divisors is an integer number (195192396).

Almost surely, 2^32172866880 is an apocalyptic number.

32172866880 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 32172866880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65584645056).

32172866880 is an abundant number, since it is smaller than the sum of its proper divisors (98996423232).

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

32172866880 is a wasteful number, since it uses less digits than its factorization.

32172866880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783 (or 766 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 51.

The spelling of 32172866880 in words is "thirty-two billion, one hundred seventy-two million, eight hundred sixty-six thousand, eight hundred eighty".