26212871849 has 4 divisors (see below), whose sum is σ = 26215848960. Its totient is φ = 26209894740.

The previous prime is 26212871843. The next prime is 26212871851. The reversal of 26212871849 is 94817821262.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26212871849 is a prime.

It is a super-2 number, since 2×26212871849² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26212871797 and 26212871806.

It is not an unprimeable number, because it can be changed into a prime (26212871843) 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, 1475309 + ... + 1492970.

It is an arithmetic number, because the mean of its divisors is an integer number (6553962240).

Almost surely, 2^26212871849 is an apocalyptic number.

It is an amenable number.

26212871849 is a deficient number, since it is larger than the sum of its proper divisors (2977111).

26212871849 is an equidigital number, since it uses as much as digits as its factorization.

26212871849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2977110.

The product of its digits is 774144, while the sum is 50.

The spelling of 26212871849 in words is "twenty-six billion, two hundred twelve million, eight hundred seventy-one thousand, eight hundred forty-nine".