18052743961 has 16 divisors (see below), whose sum is σ = 21777804160. Its totient is φ = 14659332048.

The previous prime is 18052743959. The next prime is 18052744001. The reversal of 18052743961 is 16934725081.

It is not a de Polignac number, because 18052743961 - 2¹ = 18052743959 is a prime.

It is the 134361-st Hogben number.

It is not an unprimeable number, because it can be changed into a prime (18052743911) by changing a digit.

It is a nontrivial repunit in base 134360.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139986 + ... + 236011.

It is an arithmetic number, because the mean of its divisors is an integer number (1361112760).

It is a 2-persistent number, because it is pandigital, and so is 2⋅18052743961 = 36105487922, but 3⋅18052743961 = 54158231883 is not.

Almost surely, 2^18052743961 is an apocalyptic number.

It is an amenable number.

18052743961 is a deficient number, since it is larger than the sum of its proper divisors (3725060199).

18052743961 is an frugal number, since it uses more digits than its factorization.

18052743961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376061 (or 376023 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 18052743961 in words is "eighteen billion, fifty-two million, seven hundred forty-three thousand, nine hundred sixty-one".