32772180864 has 32 divisors (see below), whose sum is σ = 87051106440. Its totient is φ = 10924060160.

The previous prime is 32772180851. The next prime is 32772180869. The reversal of 32772180864 is 46808127723.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-3 number, since 3×32772180864³ (a number of 33 digits) contains 333 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32772180869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42671727 + ... + 42672494.

Almost surely, 2^32772180864 is an apocalyptic number.

It is an amenable number.

32772180864 is an abundant number, since it is smaller than the sum of its proper divisors (54278925576).

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

32772180864 is an equidigital number, since it uses as much as digits as its factorization.

32772180864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85344238 (or 85344226 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 48.

The spelling of 32772180864 in words is "thirty-two billion, seven hundred seventy-two million, one hundred eighty thousand, eight hundred sixty-four".