189305930970 has 48 divisors (see below), whose sum is σ = 530056609992. Its totient is φ = 46598382720.

The previous prime is 189305930951. The next prime is 189305930987. The reversal of 189305930970 is 79039503981.

189305930970 is a `hidden beast` number, since 18 + 9 + 30 + 593 + 0 + 9 + 7 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 140469792849 + 48836138121 = 374793^2 + 220989^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80898801 + ... + 80901140.

Almost surely, 2^189305930970 is an apocalyptic number.

189305930970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189305930970 is an abundant number, since it is smaller than the sum of its proper divisors (340750679022).

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

189305930970 is a wasteful number, since it uses less digits than its factorization.

189305930970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161799967 (or 161799964 counting only the distinct ones).

The product of its (nonzero) digits is 1837080, while the sum is 54.

The spelling of 189305930970 in words is "one hundred eighty-nine billion, three hundred five million, nine hundred thirty thousand, nine hundred seventy".