26402905600 has 120 divisors (see below), whose sum is σ = 65523370968. Its totient is φ = 10543718400.

The previous prime is 26402905597. The next prime is 26402905601. The reversal of 26402905600 is 650920462.

It is a super-2 number, since 2×26402905600² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26402905601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10072290 + ... + 10074910.

Almost surely, 2^26402905600 is an apocalyptic number.

26402905600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26402905600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32761685484).

26402905600 is an abundant number, since it is smaller than the sum of its proper divisors (39120465368).

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

26402905600 is an equidigital number, since it uses as much as digits as its factorization.

26402905600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3436 (or 3415 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 26402905600 in words is "twenty-six billion, four hundred two million, nine hundred five thousand, six hundred".