285343285973 has 2 divisors, whose sum is σ = 285343285974. Its totient is φ = 285343285972.

The previous prime is 285343285943. The next prime is 285343286029. The reversal of 285343285973 is 379582343582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 283426334884 + 1916951089 = 532378^2 + 43783^2 .

It is a cyclic number.

It is not a de Polignac number, because 285343285973 - 2³⁰ = 284269544149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (285343285943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142671642986 + 142671642987.

It is an arithmetic number, because the mean of its divisors is an integer number (142671642987).

Almost surely, 2^285343285973 is an apocalyptic number.

It is an amenable number.

285343285973 is a deficient number, since it is larger than the sum of its proper divisors (1).

285343285973 is an equidigital number, since it uses as much as digits as its factorization.

285343285973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43545600, while the sum is 59.

The spelling of 285343285973 in words is "two hundred eighty-five billion, three hundred forty-three million, two hundred eighty-five thousand, nine hundred seventy-three".