29609690641 has 16 divisors (see below), whose sum is σ = 30724300800. Its totient is φ = 28505307600.

The previous prime is 29609690629. The next prime is 29609690647. The reversal of 29609690641 is 14609690692.

It is a cyclic number.

It is not a de Polignac number, because 29609690641 - 2⁵ = 29609690609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29609690647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11697546 + ... + 11700076.

It is an arithmetic number, because the mean of its divisors is an integer number (1920268800).

Almost surely, 2^29609690641 is an apocalyptic number.

It is an amenable number.

29609690641 is a deficient number, since it is larger than the sum of its proper divisors (1114610159).

29609690641 is a wasteful number, since it uses less digits than its factorization.

29609690641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4380.

The product of its (nonzero) digits is 1259712, while the sum is 52.

The spelling of 29609690641 in words is "twenty-nine billion, six hundred nine million, six hundred ninety thousand, six hundred forty-one".