10491904426 has 8 divisors (see below), whose sum is σ = 15739863300. Its totient is φ = 5245283328.

The previous prime is 10491904373. The next prime is 10491904427. The reversal of 10491904426 is 62440919401.

10491904426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9437928201 + 1053976225 = 97149^2 + 32465^2 .

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

It is a super-2 number, since 2×10491904426² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10491904427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314601 + ... + 346348.

Almost surely, 2^10491904426 is an apocalyptic number.

10491904426 is a deficient number, since it is larger than the sum of its proper divisors (5247958874).

10491904426 is an equidigital number, since it uses as much as digits as its factorization.

10491904426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668888.

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 10491904426 in words is "ten billion, four hundred ninety-one million, nine hundred four thousand, four hundred twenty-six".