26090697400 has 144 divisors (see below), whose sum is σ = 66092466240. Its totient is φ = 9567244800.

The previous prime is 26090697359. The next prime is 26090697403. The reversal of 26090697400 is 479609062.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26090697403) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2232372 + ... + 2244028.

It is an arithmetic number, because the mean of its divisors is an integer number (458975460).

Almost surely, 2^26090697400 is an apocalyptic number.

26090697400 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 26090697400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33046233120).

26090697400 is an abundant number, since it is smaller than the sum of its proper divisors (40001768840).

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

26090697400 is a wasteful number, since it uses less digits than its factorization.

26090697400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11742 (or 11714 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 43.

The spelling of 26090697400 in words is "twenty-six billion, ninety million, six hundred ninety-seven thousand, four hundred".