2173053734018 has 16 divisors (see below), whose sum is σ = 3265540415640. Its totient is φ = 1084540993536.

The previous prime is 2173053734009. The next prime is 2173053734023. The reversal of 2173053734018 is 8104373503712.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1340392009009 + 832661725009 = 1157753^2 + 912503^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2173053734018.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5852930 + ... + 6213122.

Almost surely, 2^{2173053734018} is an apocalyptic number.

2173053734018 is a deficient number, since it is larger than the sum of its proper divisors (1092486681622).

2173053734018 is a wasteful number, since it uses less digits than its factorization.

2173053734018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365701.

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 2173053734018 in words is "two trillion, one hundred seventy-three billion, fifty-three million, seven hundred thirty-four thousand, eighteen".