90344769666479 has 16 divisors (see below), whose sum is σ = 93698428320000. Its totient is φ = 87007124305920.

The previous prime is 90344769666427. The next prime is 90344769666491. The reversal of 90344769666479 is 97466696744309.

It is a cyclic number.

It is not a de Polignac number, because 90344769666479 - 2²⁴ = 90344752889263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90344769666409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39366434 + ... + 41598144.

It is an arithmetic number, because the mean of its divisors is an integer number (5856151770000).

Almost surely, 2^{90344769666479} is an apocalyptic number.

90344769666479 is a deficient number, since it is larger than the sum of its proper divisors (3353658653521).

90344769666479 is a wasteful number, since it uses less digits than its factorization.

90344769666479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2235298.

The product of its (nonzero) digits is 8888527872, while the sum is 80.

The spelling of 90344769666479 in words is "ninety trillion, three hundred forty-four billion, seven hundred sixty-nine million, six hundred sixty-six thousand, four hundred seventy-nine".