90827945784547 has 2 divisors, whose sum is σ = 90827945784548. Its totient is φ = 90827945784546.

The previous prime is 90827945784517. The next prime is 90827945784577. The reversal of 90827945784547 is 74548754972809.

It is a balanced prime because it is at equal distance from previous prime (90827945784517) and next prime (90827945784577).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90827945784547 is a prime.

It is not a weakly prime, because it can be changed into another prime (90827945784517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45413972892273 + 45413972892274.

It is an arithmetic number, because the mean of its divisors is an integer number (45413972892274).

Almost surely, 2^{90827945784547} is an apocalyptic number.

90827945784547 is a deficient number, since it is larger than the sum of its proper divisors (1).

90827945784547 is an equidigital number, since it uses as much as digits as its factorization.

90827945784547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5689958400, while the sum is 79.

The spelling of 90827945784547 in words is "ninety trillion, eight hundred twenty-seven billion, nine hundred forty-five million, seven hundred eighty-four thousand, five hundred forty-seven".