189534846736 has 45 divisors (see below), whose sum is σ = 370570462869. Its totient is φ = 93911513472.

The previous prime is 189534846733. The next prime is 189534846763. The reversal of 189534846736 is 637648435981.

The square root of 189534846736 is 435356.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 175644810000 + 13890036736 = 419100^2 + 117856^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189534846733) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 221160420 + ... + 221161276.

Almost surely, 2^189534846736 is an apocalyptic number.

189534846736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

189534846736 is the 435356-th square number.

It is an amenable number.

189534846736 is a deficient number, since it is larger than the sum of its proper divisors (181035616133).

189534846736 is an frugal number, since it uses more digits than its factorization.

189534846736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1976 (or 986 counting only the distinct ones).

The product of its digits is 104509440, while the sum is 64.

Multiplying 189534846736 by its sum of digits (64), we get a square (12130230191104 = 3482848²).

The spelling of 189534846736 in words is "one hundred eighty-nine billion, five hundred thirty-four million, eight hundred forty-six thousand, seven hundred thirty-six".