327638045631 has 32 divisors (see below), whose sum is σ = 477193102848. Its totient is φ = 198736836480.

The previous prime is 327638045611. The next prime is 327638045653. The reversal of 327638045631 is 136540836723.

It is not a de Polignac number, because 327638045631 - 2⁵ = 327638045599 is a prime.

It is a super-2 number, since 2×327638045631² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (327638045611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14462245 + ... + 14484881.

It is an arithmetic number, because the mean of its divisors is an integer number (14912284464).

Almost surely, 2^327638045631 is an apocalyptic number.

327638045631 is a deficient number, since it is larger than the sum of its proper divisors (149555057217).

327638045631 is a wasteful number, since it uses less digits than its factorization.

327638045631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27951.

The product of its (nonzero) digits is 2177280, while the sum is 48.

The spelling of 327638045631 in words is "three hundred twenty-seven billion, six hundred thirty-eight million, forty-five thousand, six hundred thirty-one".