26886505272 has 32 divisors (see below), whose sum is σ = 73326833280. Its totient is φ = 8147425760.

The previous prime is 26886505271. The next prime is 26886505291. The reversal of 26886505272 is 27250568862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26886505271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50921148 + ... + 50921675.

It is an arithmetic number, because the mean of its divisors is an integer number (2291463540).

Almost surely, 2^26886505272 is an apocalyptic number.

26886505272 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

26886505272 is an abundant number, since it is smaller than the sum of its proper divisors (46440328008).

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

26886505272 is a wasteful number, since it uses less digits than its factorization.

26886505272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101842843 (or 101842839 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 51.

The spelling of 26886505272 in words is "twenty-six billion, eight hundred eighty-six million, five hundred five thousand, two hundred seventy-two".