18901824053 has 4 divisors (see below), whose sum is σ = 21602084640. Its totient is φ = 16201563468.

The previous prime is 18901824049. The next prime is 18901824077. The reversal of 18901824053 is 35042810981.

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, and also an emirpimes, since its reverse is a distinct semiprime: 35042810981 = 47 ⋅745591723.

It is a cyclic number.

It is not a de Polignac number, because 18901824053 - 2² = 18901824049 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 18901824053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18901824083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1350130283 + ... + 1350130296.

It is an arithmetic number, because the mean of its divisors is an integer number (5400521160).

Almost surely, 2^18901824053 is an apocalyptic number.

It is an amenable number.

18901824053 is a deficient number, since it is larger than the sum of its proper divisors (2700260587).

18901824053 is an equidigital number, since it uses as much as digits as its factorization.

18901824053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2700260586.

The product of its (nonzero) digits is 69120, while the sum is 41.

The spelling of 18901824053 in words is "eighteen billion, nine hundred one million, eight hundred twenty-four thousand, fifty-three".