285642470429 has 2 divisors, whose sum is σ = 285642470430. Its totient is φ = 285642470428.

The previous prime is 285642470419. The next prime is 285642470441. The reversal of 285642470429 is 924074246582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 274993262404 + 10649208025 = 524398^2 + 103195^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-285642470429 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (285642470419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142821235214 + 142821235215.

It is an arithmetic number, because the mean of its divisors is an integer number (142821235215).

Almost surely, 2^285642470429 is an apocalyptic number.

It is an amenable number.

285642470429 is a deficient number, since it is larger than the sum of its proper divisors (1).

285642470429 is an equidigital number, since it uses as much as digits as its factorization.

285642470429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7741440, while the sum is 53.

The spelling of 285642470429 in words is "two hundred eighty-five billion, six hundred forty-two million, four hundred seventy thousand, four hundred twenty-nine".