189475614720 has 1456 divisors, whose sum is σ = 816491985600. Its totient is φ = 42138206208.

The previous prime is 189475614719. The next prime is 189475614721. The reversal of 189475614720 is 27416574981.

189475614720 is a `hidden beast` number, since 1 + 8 + 9 + 4 + 7 + 561 + 4 + 72 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (189475614719) and next prime (189475614721).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189475614721) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 5120962542 + ... + 5120962578.

Almost surely, 2^189475614720 is an apocalyptic number.

189475614720 is a gapful number since it is divisible by the number (10) 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 189475614720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408245992800).

189475614720 is an abundant number, since it is smaller than the sum of its proper divisors (627016370880).

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

189475614720 is an frugal number, since it uses more digits than its factorization.

189475614720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The spelling of 189475614720 in words is "one hundred eighty-nine billion, four hundred seventy-five million, six hundred fourteen thousand, seven hundred twenty".