189305370053 has 16 divisors (see below), whose sum is σ = 194137278720. Its totient is φ = 184537289664.

The previous prime is 189305369951. The next prime is 189305370077. The reversal of 189305370053 is 350073503981.

It is a cyclic number.

It is not a de Polignac number, because 189305370053 - 2²⁰ = 189304321477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 189305369986 and 189305370013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189305340053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11092475 + ... + 11109527.

It is an arithmetic number, because the mean of its divisors is an integer number (12133579920).

Almost surely, 2^189305370053 is an apocalyptic number.

It is an amenable number.

189305370053 is a deficient number, since it is larger than the sum of its proper divisors (4831908667).

189305370053 is a wasteful number, since it uses less digits than its factorization.

189305370053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18908.

The product of its (nonzero) digits is 340200, while the sum is 44.

The spelling of 189305370053 in words is "one hundred eighty-nine billion, three hundred five million, three hundred seventy thousand, fifty-three".