26860554930173 has 2 divisors, whose sum is σ = 26860554930174. Its totient is φ = 26860554930172.

The previous prime is 26860554930061. The next prime is 26860554930191. The reversal of 26860554930173 is 37103945506862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20601041312569 + 6259513617604 = 4538837^2 + 2501902^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26860554930173 is a prime.

It is a super-2 number, since 2×26860554930173² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26860554980173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13430277465086 + 13430277465087.

It is an arithmetic number, because the mean of its divisors is an integer number (13430277465087).

It is a 2-persistent number, because it is pandigital, and so is 2⋅26860554930173 = 53721109860346, but 3⋅26860554930173 = 80581664790519 is not.

Almost surely, 2^{26860554930173} is an apocalyptic number.

It is an amenable number.

26860554930173 is a deficient number, since it is larger than the sum of its proper divisors (1).

26860554930173 is an equidigital number, since it uses as much as digits as its factorization.

26860554930173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32659200, while the sum is 59.

The spelling of 26860554930173 in words is "twenty-six trillion, eight hundred sixty billion, five hundred fifty-four million, nine hundred thirty thousand, one hundred seventy-three".