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16427822601889 = 18718780236559
BaseRepresentation
bin1110111100001110011010…
…0001111101011010100001
32011011111002012110210102001
43233003212201331122201
54123123140041230024
654534500523124001
73313604521103056
oct357034641753241
964144065423361
1016427822601889
11526400064a426
121a139a4673601
139221a207189a
1440b17a29302d
151d74d3198244
hexef0e687d6a1

16427822601889 has 4 divisors (see below), whose sum is σ = 16436602840320. Its totient is φ = 16419042363460.

The previous prime is 16427822601877. The next prime is 16427822601919. The reversal of 16427822601889 is 98810622872461.

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 2k-16427822601889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16427822601889.

It is not an unprimeable number, because it can be changed into a prime (16427822601389) 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, 4390116409 + ... + 4390120150.

It is an arithmetic number, because the mean of its divisors is an integer number (4109150710080).

Almost surely, 216427822601889 is an apocalyptic number.

It is an amenable number.

16427822601889 is a deficient number, since it is larger than the sum of its proper divisors (8780238431).

16427822601889 is an equidigital number, since it uses as much as digits as its factorization.

16427822601889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8780238430.

The product of its (nonzero) digits is 37158912, while the sum is 64.

The spelling of 16427822601889 in words is "sixteen trillion, four hundred twenty-seven billion, eight hundred twenty-two million, six hundred one thousand, eight hundred eighty-nine".

Divisors: 1 1871 8780236559 16427822601889