20295412431849 has 9 divisors (see below), whose sum is σ = 29315615256759. Its totient is φ = 13530265944480.

The previous prime is 20295412431829. The next prime is 20295412431937. The reversal of 20295412431849 is 94813421459202.

The square root of 20295412431849 is 4505043.

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

20295412431849 is a `hidden beast` number, since 2 + 0 + 2 + 9 + 5 + 412 + 43 + 184 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18190591791849 + 2104820640000 = 4265043^2 + 1450800^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 20295412431849 - 2⁹ = 20295412431337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20295412431795 and 20295412431804.

It is not an unprimeable number, because it can be changed into a prime (20295412431829) 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, 12764289 + ... + 14265969.

Almost surely, 2^{20295412431849} is an apocalyptic number.

20295412431849 is the 4505043-rd square number.

20295412431849 is the 2252522-nd centered octagonal number.

It is an amenable number.

20295412431849 is a deficient number, since it is larger than the sum of its proper divisors (9020202824910).

20295412431849 is an frugal number, since it uses more digits than its factorization.

20295412431849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3003368 (or 1501684 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 20295412431849 in words is "twenty trillion, two hundred ninety-five billion, four hundred twelve million, four hundred thirty-one thousand, eight hundred forty-nine".