263608860274453 has 2 divisors, whose sum is σ = 263608860274454. Its totient is φ = 263608860274452.

The previous prime is 263608860274429. The next prime is 263608860274457. The reversal of 263608860274453 is 354472068806362.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 213686128652049 + 49922731622404 = 14618007^2 + 7065602^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-263608860274453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263608860274457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131804430137226 + 131804430137227.

It is an arithmetic number, because the mean of its divisors is an integer number (131804430137227).

Almost surely, 2^{263608860274453} is an apocalyptic number.

It is an amenable number.

263608860274453 is a deficient number, since it is larger than the sum of its proper divisors (1).

263608860274453 is an equidigital number, since it uses as much as digits as its factorization.

263608860274453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 278691840, while the sum is 64.

The spelling of 263608860274453 in words is "two hundred sixty-three trillion, six hundred eight billion, eight hundred sixty million, two hundred seventy-four thousand, four hundred fifty-three".