189426023361 has 45 divisors (see below), whose sum is σ = 291046950579. Its totient is φ = 122776924176.

The previous prime is 189426023359. The next prime is 189426023363. The reversal of 189426023361 is 163320624981.

The square root of 189426023361 is 435231.

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

189426023361 is a `hidden beast` number, since 1 + 8 + 9 + 4 + 2 + 602 + 3 + 36 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (189426023359) and next prime (189426023363).

It can be written as a sum of positive squares in only one way, i.e., 169501007025 + 19925016336 = 411705^2 + 141156^2 .

It is not a de Polignac number, because 189426023361 - 2¹ = 189426023359 is a prime.

It is not an unprimeable number, because it can be changed into a prime (189426023363) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 144931270 + ... + 144932576.

Almost surely, 2^189426023361 is an apocalyptic number.

189426023361 is the 435231-st square number.

189426023361 is the 217616-th centered octagonal number.

It is an amenable number.

189426023361 is a deficient number, since it is larger than the sum of its proper divisors (101620927218).

189426023361 is an frugal number, since it uses more digits than its factorization.

189426023361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2700 (or 1347 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 189426023361 in words is "one hundred eighty-nine billion, four hundred twenty-six million, twenty-three thousand, three hundred sixty-one".