29324489661 has 6 divisors (see below), whose sum is σ = 42357596190. Its totient is φ = 19549659768.

The previous prime is 29324489639. The next prime is 29324489669. The reversal of 29324489661 is 16698442392.

29324489661 is a `hidden beast` number, since 29 + 32 + 448 + 96 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 20896148025 + 8428341636 = 144555^2 + 91806^2 .

It is not a de Polignac number, because 29324489661 - 2¹¹ = 29324487613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 29324489598 and 29324489607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29324489669) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1629138306 + ... + 1629138323.

It is an arithmetic number, because the mean of its divisors is an integer number (7059599365).

Almost surely, 2^29324489661 is an apocalyptic number.

It is an amenable number.

29324489661 is a deficient number, since it is larger than the sum of its proper divisors (13033106529).

29324489661 is a wasteful number, since it uses less digits than its factorization.

29324489661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3258276635 (or 3258276632 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 54.

The spelling of 29324489661 in words is "twenty-nine billion, three hundred twenty-four million, four hundred eighty-nine thousand, six hundred sixty-one".