263325523379 has 2 divisors, whose sum is σ = 263325523380. Its totient is φ = 263325523378.

The previous prime is 263325523319. The next prime is 263325523397. The reversal of 263325523379 is 973325523362.

Together with next prime (263325523397) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 263325523379 - 2³⁶ = 194606046643 is a prime.

It is a super-4 number, since 4×263325523379⁴ (a number of 47 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (263325523319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131662761689 + 131662761690.

It is an arithmetic number, because the mean of its divisors is an integer number (131662761690).

Almost surely, 2^263325523379 is an apocalyptic number.

263325523379 is a deficient number, since it is larger than the sum of its proper divisors (1).

263325523379 is an equidigital number, since it uses as much as digits as its factorization.

263325523379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6123600, while the sum is 50.

The spelling of 263325523379 in words is "two hundred sixty-three billion, three hundred twenty-five million, five hundred twenty-three thousand, three hundred seventy-nine".