10321650407891 has 2 divisors, whose sum is σ = 10321650407892. Its totient is φ = 10321650407890.

The previous prime is 10321650407857. The next prime is 10321650407917. The reversal of 10321650407891 is 19870405612301.

10321650407891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10321650407891 is a prime.

It is not a weakly prime, because it can be changed into another prime (10321650407801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5160825203945 + 5160825203946.

It is an arithmetic number, because the mean of its divisors is an integer number (5160825203946).

It is a 1-persistent number, because it is pandigital, but 2⋅10321650407891 = 20643300815782 is not.

Almost surely, 2^{10321650407891} is an apocalyptic number.

10321650407891 is a deficient number, since it is larger than the sum of its proper divisors (1).

10321650407891 is an equidigital number, since it uses as much as digits as its factorization.

10321650407891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 47.

The spelling of 10321650407891 in words is "ten trillion, three hundred twenty-one billion, six hundred fifty million, four hundred seven thousand, eight hundred ninety-one".