26278244121 has 8 divisors (see below), whose sum is σ = 36245854080. Its totient is φ = 16914731792.

The previous prime is 26278244117. The next prime is 26278244141. The reversal of 26278244121 is 12144287262.

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 26278244121 - 2² = 26278244117 is a prime.

It is a super-2 number, since 2×26278244121² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26278244121.

It is not an unprimeable number, because it can be changed into a prime (26278244141) 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, 151024305 + ... + 151024478.

It is an arithmetic number, because the mean of its divisors is an integer number (4530731760).

Almost surely, 2^26278244121 is an apocalyptic number.

It is an amenable number.

26278244121 is a deficient number, since it is larger than the sum of its proper divisors (9967609959).

26278244121 is a wasteful number, since it uses less digits than its factorization.

26278244121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302048815.

The product of its digits is 86016, while the sum is 39.

The spelling of 26278244121 in words is "twenty-six billion, two hundred seventy-eight million, two hundred forty-four thousand, one hundred twenty-one".