189338371936 has 96 divisors (see below), whose sum is σ = 444144653568. Its totient is φ = 77762280960.

The previous prime is 189338371897. The next prime is 189338371951. The reversal of 189338371936 is 639173833981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 325051 + ... + 695941.

It is an arithmetic number, because the mean of its divisors is an integer number (4626506808).

Almost surely, 2^189338371936 is an apocalyptic number.

189338371936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189338371936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222072326784).

189338371936 is an abundant number, since it is smaller than the sum of its proper divisors (254806281632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189338371936 is a wasteful number, since it uses less digits than its factorization.

189338371936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371004 (or 370996 counting only the distinct ones).

The product of its digits is 17635968, while the sum is 61.

The spelling of 189338371936 in words is "one hundred eighty-nine billion, three hundred thirty-eight million, three hundred seventy-one thousand, nine hundred thirty-six".