29648665961 has 4 divisors (see below), whose sum is σ = 29692076112. Its totient is φ = 29605255812.

The previous prime is 29648665933. The next prime is 29648665967. The reversal of 29648665961 is 16956684692.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 29648665961 - 2⁶ = 29648665897 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29648665894 and 29648665903.

It is not an unprimeable number, because it can be changed into a prime (29648665967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21704051 + ... + 21705416.

It is an arithmetic number, because the mean of its divisors is an integer number (7423019028).

Almost surely, 2^29648665961 is an apocalyptic number.

It is an amenable number.

29648665961 is a deficient number, since it is larger than the sum of its proper divisors (43410151).

29648665961 is an equidigital number, since it uses as much as digits as its factorization.

29648665961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43410150.

The product of its digits is 33592320, while the sum is 62.

The spelling of 29648665961 in words is "twenty-nine billion, six hundred forty-eight million, six hundred sixty-five thousand, nine hundred sixty-one".