18022794002 has 16 divisors (see below), whose sum is σ = 27162138840. Its totient is φ = 8968848768.

The previous prime is 18022793977. The next prime is 18022794011. The reversal of 18022794002 is 20049722081.

It is a Cunningham number, because it is equal to 134249²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 15587272801 + 2435521201 = 124849^2 + 49351^2 .

It is a super-2 number, since 2×18022794002² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338024 + ... + 387692.

Almost surely, 2^18022794002 is an apocalyptic number.

18022794002 is a deficient number, since it is larger than the sum of its proper divisors (9139344838).

18022794002 is a wasteful number, since it uses less digits than its factorization.

18022794002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50525.

The product of its (nonzero) digits is 16128, while the sum is 35.

The spelling of 18022794002 in words is "eighteen billion, twenty-two million, seven hundred ninety-four thousand, two".