26223021049 has 8 divisors (see below), whose sum is σ = 26287458120. Its totient is φ = 26158617600.

The previous prime is 26223021047. The next prime is 26223021089. The reversal of 26223021049 is 94012032262.

It can be written as a sum of positive squares in 4 ways, for example, as 5222663824 + 21000357225 = 72268^2 + 144915^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26223021049 - 2¹ = 26223021047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26223021049.

It is not an unprimeable number, because it can be changed into a prime (26223021043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2309017 + ... + 2320345.

It is an arithmetic number, because the mean of its divisors is an integer number (3285932265).

Almost surely, 2^26223021049 is an apocalyptic number.

It is an amenable number.

26223021049 is a deficient number, since it is larger than the sum of its proper divisors (64437071).

26223021049 is a wasteful number, since it uses less digits than its factorization.

26223021049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16811.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 26223021049 in words is "twenty-six billion, two hundred twenty-three million, twenty-one thousand, forty-nine".