26860554930061 has 2 divisors, whose sum is σ = 26860554930062. Its totient is φ = 26860554930060.

The previous prime is 26860554930047. The next prime is 26860554930173. The reversal of 26860554930061 is 16003945506862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20241846820836 + 6618708109225 = 4499094^2 + 2572685^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26860554930061 is a prime.

It is a super-2 number, since 2×26860554930061² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26860554929984 and 26860554930011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26860554930361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13430277465030 + 13430277465031.

It is an arithmetic number, because the mean of its divisors is an integer number (13430277465031).

Almost surely, 2^{26860554930061} is an apocalyptic number.

It is an amenable number.

26860554930061 is a deficient number, since it is larger than the sum of its proper divisors (1).

26860554930061 is an equidigital number, since it uses as much as digits as its factorization.

26860554930061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9331200, while the sum is 55.

The spelling of 26860554930061 in words is "twenty-six trillion, eight hundred sixty billion, five hundred fifty-four million, nine hundred thirty thousand, sixty-one".