918427600861 has 4 divisors (see below), whose sum is σ = 918430330912. Its totient is φ = 918424870812.

The previous prime is 918427600819. The next prime is 918427600889. The reversal of 918427600861 is 168006724819.

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 not a de Polignac number, because 918427600861 - 2¹⁷ = 918427469789 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 918427600799 and 918427600808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (918427670861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 775551 + ... + 1561516.

It is an arithmetic number, because the mean of its divisors is an integer number (229607582728).

Almost surely, 2^918427600861 is an apocalyptic number.

It is an amenable number.

918427600861 is a deficient number, since it is larger than the sum of its proper divisors (2730051).

918427600861 is a wasteful number, since it uses less digits than its factorization.

918427600861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2730050.

The product of its (nonzero) digits is 1161216, while the sum is 52.

The spelling of 918427600861 in words is "nine hundred eighteen billion, four hundred twenty-seven million, six hundred thousand, eight hundred sixty-one".