26909295243 has 16 divisors (see below), whose sum is σ = 37777401600. Its totient is φ = 16990858080.

The previous prime is 26909295239. The next prime is 26909295269. The reversal of 26909295243 is 34259290962.

It is not a de Polignac number, because 26909295243 - 2² = 26909295239 is a prime.

It is a super-2 number, since 2×26909295243² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26909295043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162573 + ... + 283281.

It is an arithmetic number, because the mean of its divisors is an integer number (2361087600).

Almost surely, 2^26909295243 is an apocalyptic number.

26909295243 is a deficient number, since it is larger than the sum of its proper divisors (10868106357).

26909295243 is a wasteful number, since it uses less digits than its factorization.

26909295243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124642.

The product of its (nonzero) digits is 2099520, while the sum is 51.

The spelling of 26909295243 in words is "twenty-six billion, nine hundred nine million, two hundred ninety-five thousand, two hundred forty-three".