189627153444 has 27 divisors (see below), whose sum is σ = 479341909137. Its totient is φ = 63208180224.

The previous prime is 189627153439. The next prime is 189627153467. The reversal of 189627153444 is 444351726981.

The square root of 189627153444 is 435462.

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

189627153444 is a `hidden beast` number, since 1 + 8 + 9 + 62 + 7 + 1 + 534 + 44 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15477848100 + 174149305344 = 124410^2 + 417312^2 .

It is a super-2 number, since 2×189627153444² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2576484 + ... + 2649060.

Almost surely, 2^189627153444 is an apocalyptic number.

189627153444 is the 435462-nd square number.

It is an amenable number.

189627153444 is an abundant number, since it is smaller than the sum of its proper divisors (289714755693).

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

189627153444 is an frugal number, since it uses more digits than its factorization.

189627153444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145164 (or 72582 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The spelling of 189627153444 in words is "one hundred eighty-nine billion, six hundred twenty-seven million, one hundred fifty-three thousand, four hundred forty-four".