26285812049 has 4 divisors (see below), whose sum is σ = 30040928064. Its totient is φ = 22530696036.

The previous prime is 26285812009. The next prime is 26285812081. The reversal of 26285812049 is 94021858262.

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-26285812049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26285811994 and 26285812012.

It is not an unprimeable number, because it can be changed into a prime (26285812009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1877557997 + ... + 1877558010.

It is an arithmetic number, because the mean of its divisors is an integer number (7510232016).

Almost surely, 2^26285812049 is an apocalyptic number.

It is an amenable number.

26285812049 is a deficient number, since it is larger than the sum of its proper divisors (3755116015).

26285812049 is an equidigital number, since it uses as much as digits as its factorization.

26285812049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3755116014.

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 26285812049 in words is "twenty-six billion, two hundred eighty-five million, eight hundred twelve thousand, forty-nine".