26283955861 has 4 divisors (see below), whose sum is σ = 26600630112. Its totient is φ = 25967281612.

The previous prime is 26283955807. The next prime is 26283955877. The reversal of 26283955861 is 16855938262.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26283955861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26283955661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158337001 + ... + 158337166.

It is an arithmetic number, because the mean of its divisors is an integer number (6650157528).

Almost surely, 2^26283955861 is an apocalyptic number.

It is an amenable number.

26283955861 is a deficient number, since it is larger than the sum of its proper divisors (316674251).

26283955861 is an equidigital number, since it uses as much as digits as its factorization.

26283955861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316674250.

The product of its digits is 6220800, while the sum is 55.

The spelling of 26283955861 in words is "twenty-six billion, two hundred eighty-three million, nine hundred fifty-five thousand, eight hundred sixty-one".