1829772941481 has 15 divisors (see below), whose sum is σ = 2733382703821. Its totient is φ = 1219840511508.

The previous prime is 1829772941471. The next prime is 1829772941519. The reversal of 1829772941481 is 1841492779281.

The square root of 1829772941481 is 1352691.

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

1829772941481 is a `hidden beast` number, since 1 + 8 + 2 + 97 + 7 + 29 + 41 + 481 = 666.

It is not a de Polignac number, because 1829772941481 - 2¹¹ = 1829772939433 is a prime.

It is a super-2 number, since 2×1829772941481² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1829772941471) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 12099070 + ... + 12249368.

Almost surely, 2^{1829772941481} is an apocalyptic number.

1829772941481 is the 1352691-st square number.

1829772941481 is the 676346-th centered octagonal number.

It is an amenable number.

1829772941481 is a deficient number, since it is larger than the sum of its proper divisors (903609762340).

1829772941481 is an frugal number, since it uses more digits than its factorization.

1829772941481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300610 (or 150302 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 63.

The spelling of 1829772941481 in words is "one trillion, eight hundred twenty-nine billion, seven hundred seventy-two million, nine hundred forty-one thousand, four hundred eighty-one".