263528785245 has 24 divisors (see below), whose sum is σ = 463462197408. Its totient is φ = 127771531360.

The previous prime is 263528785231. The next prime is 263528785253. The reversal of 263528785245 is 542587825362.

It is not a de Polignac number, because 263528785245 - 2²² = 263524590941 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72595647 + ... + 72599276.

It is an arithmetic number, because the mean of its divisors is an integer number (19310924892).

Almost surely, 2^263528785245 is an apocalyptic number.

It is an amenable number.

263528785245 is a deficient number, since it is larger than the sum of its proper divisors (199933412163).

263528785245 is a wasteful number, since it uses less digits than its factorization.

263528785245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145194953 (or 145194942 counting only the distinct ones).

The product of its digits is 32256000, while the sum is 57.

The spelling of 263528785245 in words is "two hundred sixty-three billion, five hundred twenty-eight million, seven hundred eighty-five thousand, two hundred forty-five".