8406621103927 has 2 divisors, whose sum is σ = 8406621103928. Its totient is φ = 8406621103926.

The previous prime is 8406621103891. The next prime is 8406621103939. The reversal of 8406621103927 is 7293011266048.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8406621103927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8406621103987) 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, 4203310551963 + 4203310551964.

It is an arithmetic number, because the mean of its divisors is an integer number (4203310551964).

Almost surely, 2^{8406621103927} is an apocalyptic number.

8406621103927 is a deficient number, since it is larger than the sum of its proper divisors (1).

8406621103927 is an equidigital number, since it uses as much as digits as its factorization.

8406621103927 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 8406621103927 in words is "eight trillion, four hundred six billion, six hundred twenty-one million, one hundred three thousand, nine hundred twenty-seven".