263285061049 has 4 divisors (see below), whose sum is σ = 264131637120. Its totient is φ = 262438484980.

The previous prime is 263285061007. The next prime is 263285061089. The reversal of 263285061049 is 940160582362.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 263285061049 - 2⁷ = 263285060921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (263285061089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423287569 + ... + 423288190.

It is an arithmetic number, because the mean of its divisors is an integer number (66032909280).

Almost surely, 2^263285061049 is an apocalyptic number.

It is an amenable number.

263285061049 is a deficient number, since it is larger than the sum of its proper divisors (846576071).

263285061049 is an equidigital number, since it uses as much as digits as its factorization.

263285061049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846576070.

The product of its (nonzero) digits is 622080, while the sum is 46.

The spelling of 263285061049 in words is "two hundred sixty-three billion, two hundred eighty-five million, sixty-one thousand, forty-nine".