189730337864 has 16 divisors (see below), whose sum is σ = 374467772400. Its totient is φ = 89872265232.

The previous prime is 189730337857. The next prime is 189730337873. The reversal of 189730337864 is 468733037981.

It is a super-2 number, since 2×189730337864² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 624112802 + ... + 624113105.

It is an arithmetic number, because the mean of its divisors is an integer number (23404235775).

Almost surely, 2^189730337864 is an apocalyptic number.

It is an amenable number.

189730337864 is a deficient number, since it is larger than the sum of its proper divisors (184737434536).

189730337864 is a wasteful number, since it uses less digits than its factorization.

189730337864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248225932 (or 1248225928 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 59.

The spelling of 189730337864 in words is "one hundred eighty-nine billion, seven hundred thirty million, three hundred thirty-seven thousand, eight hundred sixty-four".