26728551267 has 16 divisors (see below), whose sum is σ = 39458163072. Its totient is φ = 15957342720.

The previous prime is 26728551259. The next prime is 26728551271. The reversal of 26728551267 is 76215582762.

It is not a de Polignac number, because 26728551267 - 2³ = 26728551259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26728551217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6042238 + ... + 6046659.

It is an arithmetic number, because the mean of its divisors is an integer number (2466135192).

Almost surely, 2^26728551267 is an apocalyptic number.

26728551267 is a deficient number, since it is larger than the sum of its proper divisors (12729611805).

26728551267 is a wasteful number, since it uses less digits than its factorization.

26728551267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12088978.

The product of its digits is 2822400, while the sum is 51.

The spelling of 26728551267 in words is "twenty-six billion, seven hundred twenty-eight million, five hundred fifty-one thousand, two hundred sixty-seven".