263994840793 has 8 divisors (see below), whose sum is σ = 268478321760. Its totient is φ = 259511659680.

The previous prime is 263994840773. The next prime is 263994840887. The reversal of 263994840793 is 397048499362.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 263994840793 - 2²⁵ = 263961286361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (263994840773) 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 in 7 ways as a sum of consecutive naturals, for example, 2374146 + ... + 2482852.

It is an arithmetic number, because the mean of its divisors is an integer number (33559790220).

Almost surely, 2^263994840793 is an apocalyptic number.

It is an amenable number.

263994840793 is a deficient number, since it is larger than the sum of its proper divisors (4483480967).

263994840793 is a wasteful number, since it uses less digits than its factorization.

263994840793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149927.

The product of its (nonzero) digits is 70543872, while the sum is 64.

The spelling of 263994840793 in words is "two hundred sixty-three billion, nine hundred ninety-four million, eight hundred forty thousand, seven hundred ninety-three".