108426286496621 has 2 divisors, whose sum is σ = 108426286496622. Its totient is φ = 108426286496620.

The previous prime is 108426286496609. The next prime is 108426286496641. The reversal of 108426286496621 is 126694682624801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100660868274121 + 7765418222500 = 10032989^2 + 2786650^2 .

It is a cyclic number.

It is not a de Polignac number, because 108426286496621 - 2⁶ = 108426286496557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108426286496641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54213143248310 + 54213143248311.

It is an arithmetic number, because the mean of its divisors is an integer number (54213143248311).

Almost surely, 2^{108426286496621} is an apocalyptic number.

It is an amenable number.

108426286496621 is a deficient number, since it is larger than the sum of its proper divisors (1).

108426286496621 is an equidigital number, since it uses as much as digits as its factorization.

108426286496621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 95551488, while the sum is 65.

The spelling of 108426286496621 in words is "one hundred eight trillion, four hundred twenty-six billion, two hundred eighty-six million, four hundred ninety-six thousand, six hundred twenty-one".