26440486272 has 192 divisors, whose sum is σ = 79082640000. Its totient is φ = 8470241280.

The previous prime is 26440486271. The next prime is 26440486273. The reversal of 26440486272 is 27268404462.

26440486272 is a `hidden beast` number, since 2 + 64 + 40 + 486 + 2 + 72 = 666.

It is an interprime number because it is at equal distance from previous prime (26440486271) and next prime (26440486273).

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26440486271) 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, 5318604 + ... + 5323572.

It is an arithmetic number, because the mean of its divisors is an integer number (411888750).

Almost surely, 2^26440486272 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 26440486272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39541320000).

26440486272 is an abundant number, since it is smaller than the sum of its proper divisors (52642153728).

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

26440486272 is a wasteful number, since it uses less digits than its factorization.

26440486272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5169 (or 5154 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 45.

The spelling of 26440486272 in words is "twenty-six billion, four hundred forty million, four hundred eighty-six thousand, two hundred seventy-two".