90854212339183 has 2 divisors, whose sum is σ = 90854212339184. Its totient is φ = 90854212339182.

The previous prime is 90854212339181. The next prime is 90854212339201. The reversal of 90854212339183 is 38193321245809.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90854212339183 - 2¹ = 90854212339181 is a prime.

Together with 90854212339181, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90854212339181) 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, 45427106169591 + 45427106169592.

It is an arithmetic number, because the mean of its divisors is an integer number (45427106169592).

Almost surely, 2^{90854212339183} is an apocalyptic number.

90854212339183 is a deficient number, since it is larger than the sum of its proper divisors (1).

90854212339183 is an equidigital number, since it uses as much as digits as its factorization.

90854212339183 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11197440, while the sum is 58.

The spelling of 90854212339183 in words is "ninety trillion, eight hundred fifty-four billion, two hundred twelve million, three hundred thirty-nine thousand, one hundred eighty-three".