26959063545 has 20 divisors (see below), whose sum is σ = 48326618340. Its totient is φ = 14378167008.

The previous prime is 26959063529. The next prime is 26959063553. The reversal of 26959063545 is 54536095962.

It is a happy number.

26959063545 is a `hidden beast` number, since 2 + 6 + 9 + 5 + 90 + 6 + 3 + 545 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3583099881 + 23375963664 = 59859^2 + 152892^2 .

It is not a de Polignac number, because 26959063545 - 2⁴ = 26959063529 is a prime.

It is a super-2 number, since 2×26959063545² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26959063491 and 26959063500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 33282390 + ... + 33283199.

It is an arithmetic number, because the mean of its divisors is an integer number (2416330917).

Almost surely, 2^26959063545 is an apocalyptic number.

It is an amenable number.

26959063545 is a deficient number, since it is larger than the sum of its proper divisors (21367554795).

26959063545 is an equidigital number, since it uses as much as digits as its factorization.

26959063545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66565606 (or 66565597 counting only the distinct ones).

The product of its (nonzero) digits is 8748000, while the sum is 54.

The spelling of 26959063545 in words is "twenty-six billion, nine hundred fifty-nine million, sixty-three thousand, five hundred forty-five".