389502185949 has 16 divisors (see below), whose sum is σ = 577738059840. Its totient is φ = 259354121040.

The previous prime is 389502185921. The next prime is 389502185971. The reversal of 389502185949 is 949581205983.

389502185949 is a `hidden beast` number, since 3 + 8 + 9 + 502 + 1 + 85 + 9 + 49 = 666.

389502185949 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 389502185949 - 2⁸ = 389502185693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389502185749) 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, 8699562 + ... + 8744219.

It is an arithmetic number, because the mean of its divisors is an integer number (36108628740).

Almost surely, 2^389502185949 is an apocalyptic number.

It is an amenable number.

389502185949 is a deficient number, since it is larger than the sum of its proper divisors (188235873891).

389502185949 is a wasteful number, since it uses less digits than its factorization.

389502185949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17444617 (or 17444611 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 63.

The spelling of 389502185949 in words is "three hundred eighty-nine billion, five hundred two million, one hundred eighty-five thousand, nine hundred forty-nine".