18276073741 has 4 divisors (see below), whose sum is σ = 18392482012. Its totient is φ = 18159665472.

The previous prime is 18276073729. The next prime is 18276073759. The reversal of 18276073741 is 14737067281.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14737067281 = 47 ⋅313554623.

It can be written as a sum of positive squares in 2 ways, for example, as 10449132841 + 7826940900 = 102221^2 + 88470^2 .

It is a cyclic number.

It is not a de Polignac number, because 18276073741 - 2²⁹ = 17739202829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18276073691 and 18276073700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18276073241) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 58203900 + ... + 58204213.

It is an arithmetic number, because the mean of its divisors is an integer number (4598120503).

Almost surely, 2^18276073741 is an apocalyptic number.

It is an amenable number.

18276073741 is a deficient number, since it is larger than the sum of its proper divisors (116408271).

18276073741 is a wasteful number, since it uses less digits than its factorization.

18276073741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116408270.

The product of its (nonzero) digits is 395136, while the sum is 46.

The spelling of 18276073741 in words is "eighteen billion, two hundred seventy-six million, seventy-three thousand, seven hundred forty-one".