26854898123 has 4 divisors (see below), whose sum is σ = 27361594368. Its totient is φ = 26348201880.

The previous prime is 26854898107. The next prime is 26854898137. The reversal of 26854898123 is 32189845862.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32189845862 = 2 ⋅16094922931.

It is a cyclic number.

It is not a de Polignac number, because 26854898123 - 2⁴ = 26854898107 is a prime.

It is a super-4 number, since 4×26854898123⁴ (a number of 43 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26854898153) 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 3 ways as a sum of consecutive naturals, for example, 253348043 + ... + 253348148.

It is an arithmetic number, because the mean of its divisors is an integer number (6840398592).

Almost surely, 2^26854898123 is an apocalyptic number.

26854898123 is a deficient number, since it is larger than the sum of its proper divisors (506696245).

26854898123 is an equidigital number, since it uses as much as digits as its factorization.

26854898123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506696244.

The product of its digits is 6635520, while the sum is 56.

The spelling of 26854898123 in words is "twenty-six billion, eight hundred fifty-four million, eight hundred ninety-eight thousand, one hundred twenty-three".