285516896761 has 2 divisors, whose sum is σ = 285516896762. Its totient is φ = 285516896760.

The previous prime is 285516896759. The next prime is 285516896909. The reversal of 285516896761 is 167698615582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 224149221136 + 61367675625 = 473444^2 + 247725^2 .

It is a cyclic number.

It is not a de Polignac number, because 285516896761 - 2¹ = 285516896759 is a prime.

It is a super-2 number, since 2×285516896761² (a number of 24 digits) contains 22 as substring.

Together with 285516896759, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 285516896693 and 285516896702.

It is not a weakly prime, because it can be changed into another prime (285516891761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142758448380 + 142758448381.

It is an arithmetic number, because the mean of its divisors is an integer number (142758448381).

Almost surely, 2^285516896761 is an apocalyptic number.

It is an amenable number.

285516896761 is a deficient number, since it is larger than the sum of its proper divisors (1).

285516896761 is an equidigital number, since it uses as much as digits as its factorization.

285516896761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43545600, while the sum is 64.

The spelling of 285516896761 in words is "two hundred eighty-five billion, five hundred sixteen million, eight hundred ninety-six thousand, seven hundred sixty-one".