32445171117851 has 2 divisors, whose sum is σ = 32445171117852. Its totient is φ = 32445171117850.

The previous prime is 32445171117839. The next prime is 32445171117911. The reversal of 32445171117851 is 15871117154423.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (15871117154423) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32445171117851 - 2⁶ = 32445171117787 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 32445171117851.

It is not a weakly prime, because it can be changed into another prime (32445171113851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16222585558925 + 16222585558926.

It is an arithmetic number, because the mean of its divisors is an integer number (16222585558926).

Almost surely, 2^{32445171117851} is an apocalyptic number.

32445171117851 is a deficient number, since it is larger than the sum of its proper divisors (1).

32445171117851 is an equidigital number, since it uses as much as digits as its factorization.

32445171117851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 940800, while the sum is 50.

The spelling of 32445171117851 in words is "thirty-two trillion, four hundred forty-five billion, one hundred seventy-one million, one hundred seventeen thousand, eight hundred fifty-one".