26952562221 has 16 divisors (see below), whose sum is σ = 39949539840. Its totient is φ = 16051152960.

The previous prime is 26952562211. The next prime is 26952562243. The reversal of 26952562221 is 12226525962.

It is not a de Polignac number, because 26952562221 - 2¹⁰ = 26952561197 is a prime.

It is a super-2 number, since 2×26952562221² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26952562211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11145426 + ... + 11147843.

It is an arithmetic number, because the mean of its divisors is an integer number (2496846240).

Almost surely, 2^26952562221 is an apocalyptic number.

It is an amenable number.

26952562221 is a deficient number, since it is larger than the sum of its proper divisors (12996977619).

26952562221 is a wasteful number, since it uses less digits than its factorization.

26952562221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22293316.

The product of its digits is 259200, while the sum is 42.

The spelling of 26952562221 in words is "twenty-six billion, nine hundred fifty-two million, five hundred sixty-two thousand, two hundred twenty-one".