985227475751 has 2 divisors, whose sum is σ = 985227475752. Its totient is φ = 985227475750.

The previous prime is 985227475657. The next prime is 985227475769. The reversal of 985227475751 is 157574722589.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 985227475751 - 2²² = 985223281447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (985227475781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492613737875 + 492613737876.

It is an arithmetic number, because the mean of its divisors is an integer number (492613737876).

Almost surely, 2^985227475751 is an apocalyptic number.

985227475751 is a deficient number, since it is larger than the sum of its proper divisors (1).

985227475751 is an equidigital number, since it uses as much as digits as its factorization.

985227475751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 49392000, while the sum is 62.

The spelling of 985227475751 in words is "nine hundred eighty-five billion, two hundred twenty-seven million, four hundred seventy-five thousand, seven hundred fifty-one".