26245772361 has 40 divisors (see below), whose sum is σ = 39450840000. Its totient is φ = 17388574560.

The previous prime is 26245772353. The next prime is 26245772407. The reversal of 26245772361 is 16327754262.

26245772361 is a `hidden beast` number, since 26 + 24 + 577 + 2 + 36 + 1 = 666.

It is not a de Polignac number, because 26245772361 - 2³ = 26245772353 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26245772261) 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 39 ways as a sum of consecutive naturals, for example, 9546015 + ... + 9548763.

It is an arithmetic number, because the mean of its divisors is an integer number (986271000).

Almost surely, 2^26245772361 is an apocalyptic number.

It is an amenable number.

26245772361 is a deficient number, since it is larger than the sum of its proper divisors (13205067639).

26245772361 is a wasteful number, since it uses less digits than its factorization.

26245772361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3451 (or 3442 counting only the distinct ones).

The product of its digits is 846720, while the sum is 45.

The spelling of 26245772361 in words is "twenty-six billion, two hundred forty-five million, seven hundred seventy-two thousand, three hundred sixty-one".