90344769666427 has 2 divisors, whose sum is σ = 90344769666428. Its totient is φ = 90344769666426.

The previous prime is 90344769666409. The next prime is 90344769666491. The reversal of 90344769666427 is 72466696744309.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90344769666427 - 2¹¹ = 90344769664379 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90344769666427.

It is not a weakly prime, because it can be changed into another prime (90344769660427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45172384833213 + 45172384833214.

It is an arithmetic number, because the mean of its divisors is an integer number (45172384833214).

Almost surely, 2^{90344769666427} is an apocalyptic number.

90344769666427 is a deficient number, since it is larger than the sum of its proper divisors (1).

90344769666427 is an equidigital number, since it uses as much as digits as its factorization.

90344769666427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1975228416, while the sum is 73.

The spelling of 90344769666427 in words is "ninety trillion, three hundred forty-four billion, seven hundred sixty-nine million, six hundred sixty-six thousand, four hundred twenty-seven".