26130861 has 24 divisors (see below), whose sum is σ = 39526656. Its totient is φ = 16614720.

The previous prime is 26130859. The next prime is 26130869. The reversal of 26130861 is 16803162.

It is not a de Polignac number, because 26130861 - 2¹ = 26130859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26130869) 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, 19726 + ... + 21008.

It is an arithmetic number, because the mean of its divisors is an integer number (1646944).

Almost surely, 2^26130861 is an apocalyptic number.

It is an amenable number.

26130861 is a deficient number, since it is larger than the sum of its proper divisors (13395795).

26130861 is a wasteful number, since it uses less digits than its factorization.

26130861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393 (or 1390 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 26130861 is about 5111.8353846735. The cubic root of 26130861 is about 296.7457947970.

The spelling of 26130861 in words is "twenty-six million, one hundred thirty thousand, eight hundred sixty-one".