285045562169749 has 2 divisors, whose sum is σ = 285045562169750. Its totient is φ = 285045562169748.

The previous prime is 285045562169743. The next prime is 285045562169783. The reversal of 285045562169749 is 947961265540582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184733819589124 + 100311742580625 = 13591682^2 + 10015575^2 .

It is a cyclic number.

It is not a de Polignac number, because 285045562169749 - 2⁹ = 285045562169237 is a prime.

It is a super-4 number, since 4×285045562169749⁴ (a number of 59 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (285045562169743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142522781084874 + 142522781084875.

It is an arithmetic number, because the mean of its divisors is an integer number (142522781084875).

Almost surely, 2^{285045562169749} is an apocalyptic number.

It is an amenable number.

285045562169749 is a deficient number, since it is larger than the sum of its proper divisors (1).

285045562169749 is an equidigital number, since it uses as much as digits as its factorization.

285045562169749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368000, while the sum is 73.

The spelling of 285045562169749 in words is "two hundred eighty-five trillion, forty-five billion, five hundred sixty-two million, one hundred sixty-nine thousand, seven hundred forty-nine".