263940733319 has 2 divisors, whose sum is σ = 263940733320. Its totient is φ = 263940733318.

The previous prime is 263940733297. The next prime is 263940733333. The reversal of 263940733319 is 913337049362.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-263940733319 is a prime.

It is a super-2 number, since 2×263940733319² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263940733519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131970366659 + 131970366660.

It is an arithmetic number, because the mean of its divisors is an integer number (131970366660).

Almost surely, 2^263940733319 is an apocalyptic number.

263940733319 is a deficient number, since it is larger than the sum of its proper divisors (1).

263940733319 is an equidigital number, since it uses as much as digits as its factorization.

263940733319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2204496, while the sum is 50.

The spelling of 263940733319 in words is "two hundred sixty-three billion, nine hundred forty million, seven hundred thirty-three thousand, three hundred nineteen".