26618995145 has 16 divisors (see below), whose sum is σ = 33829107840. Its totient is φ = 20065292544.

The previous prime is 26618995141. The next prime is 26618995213. The reversal of 26618995145 is 54159981662.

It is a cyclic number.

It is not a de Polignac number, because 26618995145 - 2² = 26618995141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26618995141) 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, 1719680 + ... + 1735089.

It is an arithmetic number, because the mean of its divisors is an integer number (2114319240).

Almost surely, 2^26618995145 is an apocalyptic number.

It is an amenable number.

26618995145 is a deficient number, since it is larger than the sum of its proper divisors (7210112695).

26618995145 is a wasteful number, since it uses less digits than its factorization.

26618995145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3454864.

The product of its digits is 4665600, while the sum is 56.

The spelling of 26618995145 in words is "twenty-six billion, six hundred eighteen million, nine hundred ninety-five thousand, one hundred forty-five".