263340207285 has 64 divisors (see below), whose sum is σ = 442407377664. Its totient is φ = 133638912000.

The previous prime is 263340207283. The next prime is 263340207301. The reversal of 263340207285 is 582702043362.

263340207285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 263340207285 - 2¹ = 263340207283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263340207283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4130067 + ... + 4193343.

It is an arithmetic number, because the mean of its divisors is an integer number (6912615276).

Almost surely, 2^263340207285 is an apocalyptic number.

It is an amenable number.

263340207285 is a deficient number, since it is larger than the sum of its proper divisors (179067170379).

263340207285 is a wasteful number, since it uses less digits than its factorization.

263340207285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63494.

The product of its (nonzero) digits is 483840, while the sum is 42.

The spelling of 263340207285 in words is "two hundred sixty-three billion, three hundred forty million, two hundred seven thousand, two hundred eighty-five".