32647661231 has 2 divisors, whose sum is σ = 32647661232. Its totient is φ = 32647661230.

The previous prime is 32647661173. The next prime is 32647661287. The reversal of 32647661231 is 13216674623.

It is a strong prime.

It is an emirp because it is prime and its reverse (13216674623) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32647661231 - 2³⁰ = 31573919407 is a prime.

It is a super-2 number, since 2×32647661231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32647661131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16323830615 + 16323830616.

It is an arithmetic number, because the mean of its divisors is an integer number (16323830616).

Almost surely, 2^32647661231 is an apocalyptic number.

32647661231 is a deficient number, since it is larger than the sum of its proper divisors (1).

32647661231 is an equidigital number, since it uses as much as digits as its factorization.

32647661231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 41.

The spelling of 32647661231 in words is "thirty-two billion, six hundred forty-seven million, six hundred sixty-one thousand, two hundred thirty-one".