2184912641025 has 27 divisors (see below), whose sum is σ = 3913461021379. Its totient is φ = 1165274916720.

The previous prime is 2184912640931. The next prime is 2184912641027. The reversal of 2184912641025 is 5201462194812.

The square root of 2184912641025 is 1478145.

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

2184912641025 is a `hidden beast` number, since 218 + 4 + 9 + 12 + 6 + 410 + 2 + 5 = 666.

It can be written as a sum of positive squares in only one way, i.e., 786568550769 + 1398344090256 = 886887^2 + 1182516^2 .

It is not a de Polignac number, because 2184912641025 - 2¹⁷ = 2184912509953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2184912641027) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 22122904 + ... + 22221446.

Almost surely, 2^{2184912641025} is an apocalyptic number.

2184912641025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2184912641025 is the 1478145-th square number.

2184912641025 is the 739073-rd centered octagonal number.

It is an amenable number.

2184912641025 is a deficient number, since it is larger than the sum of its proper divisors (1728548380354).

2184912641025 is an frugal number, since it uses more digits than its factorization.

2184912641025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197102 (or 98551 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 2184912641025 in words is "two trillion, one hundred eighty-four billion, nine hundred twelve million, six hundred forty-one thousand, twenty-five".