26728554426 has 32 divisors (see below), whose sum is σ = 63750094848. Its totient is φ = 7304697840.

The previous prime is 26728554421. The next prime is 26728554467. The reversal of 26728554426 is 62445582762.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26728554421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13833690 + ... + 13835621.

It is an arithmetic number, because the mean of its divisors is an integer number (1992190464).

Almost surely, 2^26728554426 is an apocalyptic number.

26728554426 is an abundant number, since it is smaller than the sum of its proper divisors (37021540422).

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

26728554426 is a wasteful number, since it uses less digits than its factorization.

26728554426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27669346.

The product of its digits is 6451200, while the sum is 51.

The spelling of 26728554426 in words is "twenty-six billion, seven hundred twenty-eight million, five hundred fifty-four thousand, four hundred twenty-six".