26909978233 has 8 divisors (see below), whose sum is σ = 27806835008. Its totient is φ = 26022045744.

The previous prime is 26909978231. The next prime is 26909978239. The reversal of 26909978233 is 33287990962.

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 26909978233 - 2¹ = 26909978231 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26909978231) 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, 2224941 + ... + 2237002.

It is an arithmetic number, because the mean of its divisors is an integer number (3475854376).

Almost surely, 2^26909978233 is an apocalyptic number.

It is an amenable number.

26909978233 is a deficient number, since it is larger than the sum of its proper divisors (896856775).

26909978233 is a wasteful number, since it uses less digits than its factorization.

26909978233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4462143.

The product of its (nonzero) digits is 8817984, while the sum is 58.

The spelling of 26909978233 in words is "twenty-six billion, nine hundred nine million, nine hundred seventy-eight thousand, two hundred thirty-three".