263436274403 has 8 divisors (see below), whose sum is σ = 275167435776. Its totient is φ = 251728230600.

The previous prime is 263436274393. The next prime is 263436274417. The reversal of 263436274403 is 304472634362.

263436274403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-263436274403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (263436274103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5756093 + ... + 5801678.

It is an arithmetic number, because the mean of its divisors is an integer number (34395929472).

Almost surely, 2^263436274403 is an apocalyptic number.

263436274403 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

263436274403 is a deficient number, since it is larger than the sum of its proper divisors (11731161373).

263436274403 is a wasteful number, since it uses less digits than its factorization.

263436274403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11558785.

The product of its (nonzero) digits is 1741824, while the sum is 44.

The spelling of 263436274403 in words is "two hundred sixty-three billion, four hundred thirty-six million, two hundred seventy-four thousand, four hundred three".