32721970871 has 2 divisors, whose sum is σ = 32721970872. Its totient is φ = 32721970870.

The previous prime is 32721970759. The next prime is 32721970949. The reversal of 32721970871 is 17807912723.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32721970871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32721973871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16360985435 + 16360985436.

It is an arithmetic number, because the mean of its divisors is an integer number (16360985436).

Almost surely, 2^32721970871 is an apocalyptic number.

32721970871 is a deficient number, since it is larger than the sum of its proper divisors (1).

32721970871 is an equidigital number, since it uses as much as digits as its factorization.

32721970871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 296352, while the sum is 47.

The spelling of 32721970871 in words is "thirty-two billion, seven hundred twenty-one million, nine hundred seventy thousand, eight hundred seventy-one".