26705225140 has 72 divisors (see below), whose sum is σ = 61878579840. Its totient is φ = 9673836480.

The previous prime is 26705225111. The next prime is 26705225143. The reversal of 26705225140 is 4152250762.

It is a junction number, because it is equal to n+sod(n) for n = 26705225096 and 26705225105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26705225143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 615481 + ... + 657439.

It is an arithmetic number, because the mean of its divisors is an integer number (859424720).

Almost surely, 2^26705225140 is an apocalyptic number.

26705225140 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 26705225140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30939289920).

26705225140 is an abundant number, since it is smaller than the sum of its proper divisors (35173354700).

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

26705225140 is a wasteful number, since it uses less digits than its factorization.

26705225140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42253 (or 42240 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The spelling of 26705225140 in words is "twenty-six billion, seven hundred five million, two hundred twenty-five thousand, one hundred forty".