11904340026 has 16 divisors (see below), whose sum is σ = 23979967200. Its totient is φ = 3939565488.

The previous prime is 11904340013. The next prime is 11904340027. The reversal of 11904340026 is 62004340911.

It is a super-2 number, since 2×11904340026² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11904339975 and 11904340002.

It is not an unprimeable number, because it can be changed into a prime (11904340027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7136061 + ... + 7137728.

It is an arithmetic number, because the mean of its divisors is an integer number (1498747950).

Almost surely, 2^11904340026 is an apocalyptic number.

11904340026 is an abundant number, since it is smaller than the sum of its proper divisors (12075627174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11904340026 is a wasteful number, since it uses less digits than its factorization.

11904340026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14273933.

The product of its (nonzero) digits is 5184, while the sum is 30.

Adding to 11904340026 its reverse (62004340911), we get a palindrome (73908680937).

The spelling of 11904340026 in words is "eleven billion, nine hundred four million, three hundred forty thousand, twenty-six".