909421318263 has 4 divisors (see below), whose sum is σ = 1212561757688. Its totient is φ = 606280878840.

The previous prime is 909421318217. The next prime is 909421318277. The reversal of 909421318263 is 362813124909.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 909421318263 - 2¹³ = 909421310071 is a prime.

It is a super-2 number, since 2×909421318263² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (909421318063) 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 3 ways as a sum of consecutive naturals, for example, 151570219708 + ... + 151570219713.

It is an arithmetic number, because the mean of its divisors is an integer number (303140439422).

Almost surely, 2^909421318263 is an apocalyptic number.

909421318263 is a deficient number, since it is larger than the sum of its proper divisors (303140439425).

909421318263 is a wasteful number, since it uses less digits than its factorization.

909421318263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303140439424.

The product of its (nonzero) digits is 559872, while the sum is 48.

The spelling of 909421318263 in words is "nine hundred nine billion, four hundred twenty-one million, three hundred eighteen thousand, two hundred sixty-three".