189700789320 has 1536 divisors, whose sum is σ = 825297984000. Its totient is φ = 38459473920.

The previous prime is 189700789301. The next prime is 189700789363. The reversal of 189700789320 is 23987007981.

189700789320 is a `hidden beast` number, since 189 + 70 + 0 + 78 + 9 + 320 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 1364753811 + ... + 1364753949.

It is an arithmetic number, because the mean of its divisors is an integer number (537303375).

Almost surely, 2^189700789320 is an apocalyptic number.

189700789320 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 189700789320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (412648992000).

189700789320 is an abundant number, since it is smaller than the sum of its proper divisors (635597194680).

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

189700789320 is a wasteful number, since it uses less digits than its factorization.

189700789320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 54.

The spelling of 189700789320 in words is "one hundred eighty-nine billion, seven hundred million, seven hundred eighty-nine thousand, three hundred twenty".