32327972646 has 16 divisors (see below), whose sum is σ = 64886041008. Its totient is φ = 10737641600.

The previous prime is 32327972641. The next prime is 32327972671. The reversal of 32327972646 is 64627972323.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32327972641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9585495 + ... + 9588866.

It is an arithmetic number, because the mean of its divisors is an integer number (4055377563).

Almost surely, 2^32327972646 is an apocalyptic number.

32327972646 is an abundant number, since it is smaller than the sum of its proper divisors (32558068362).

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

32327972646 is a wasteful number, since it uses less digits than its factorization.

32327972646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19174647.

The product of its digits is 4572288, while the sum is 51.

The spelling of 32327972646 in words is "thirty-two billion, three hundred twenty-seven million, nine hundred seventy-two thousand, six hundred forty-six".