26091372672 has 192 divisors, whose sum is σ = 78934870560. Its totient is φ = 8577239040.

The previous prime is 26091372667. The next prime is 26091372677. The reversal of 26091372672 is 27627319062.

26091372672 is a `hidden beast` number, since 2 + 609 + 1 + 37 + 2 + 6 + 7 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (26091372667) and next prime (26091372677).

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

It is not an unprimeable number, because it can be changed into a prime (26091372677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2264847 + ... + 2276337.

Almost surely, 2^26091372672 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 26091372672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39467435280).

26091372672 is an abundant number, since it is smaller than the sum of its proper divisors (52843497888).

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

26091372672 is an equidigital number, since it uses as much as digits as its factorization.

26091372672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11593 (or 11569 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The spelling of 26091372672 in words is "twenty-six billion, ninety-one million, three hundred seventy-two thousand, six hundred seventy-two".