26345640195 has 24 divisors (see below), whose sum is σ = 52189459296. Its totient is φ = 12043721088.

The previous prime is 26345640193. The next prime is 26345640257. The reversal of 26345640195 is 59104654362.

26345640195 is a `hidden beast` number, since 2 + 6 + 3 + 456 + 4 + 0 + 195 = 666.

It is not a de Polignac number, because 26345640195 - 2¹ = 26345640193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 26345640195.

It is not an unprimeable number, because it can be changed into a prime (26345640193) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41818162 + ... + 41818791.

It is an arithmetic number, because the mean of its divisors is an integer number (2174560804).

Almost surely, 2^26345640195 is an apocalyptic number.

26345640195 is a deficient number, since it is larger than the sum of its proper divisors (25843819101).

26345640195 is a wasteful number, since it uses less digits than its factorization.

26345640195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83636971 (or 83636968 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 26345640195 in words is "twenty-six billion, three hundred forty-five million, six hundred forty thousand, one hundred ninety-five".