26190000804 has 96 divisors (see below), whose sum is σ = 69082957440. Its totient is φ = 7649510400.

The previous prime is 26190000803. The next prime is 26190000829. The reversal of 26190000804 is 40800009162.

It is a super-2 number, since 2×26190000804² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26190000803) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2340984 + ... + 2352144.

It is an arithmetic number, because the mean of its divisors is an integer number (719614140).

Almost surely, 2^26190000804 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26190000804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34541478720).

26190000804 is an abundant number, since it is smaller than the sum of its proper divisors (42892956636).

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

26190000804 is a wasteful number, since it uses less digits than its factorization.

26190000804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11821 (or 11819 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

Adding to 26190000804 its reverse (40800009162), we get a palindrome (66990009966).

The spelling of 26190000804 in words is "twenty-six billion, one hundred ninety million, eight hundred four", and thus it is an aban number.