29628747161 has 8 divisors (see below), whose sum is σ = 31939147464. Its totient is φ = 27322813440.

The previous prime is 29628747107. The next prime is 29628747179. The reversal of 29628747161 is 16174782692.

It can be written as a sum of positive squares in 4 ways, for example, as 134119561 + 29494627600 = 11581^2 + 171740^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 29628747161 - 2¹⁰ = 29628746137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29628747191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1102856 + ... + 1129401.

It is an arithmetic number, because the mean of its divisors is an integer number (3992393433).

Almost surely, 2^29628747161 is an apocalyptic number.

It is an amenable number.

29628747161 is a deficient number, since it is larger than the sum of its proper divisors (2310400303).

29628747161 is a wasteful number, since it uses less digits than its factorization.

29628747161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2233291.

The product of its digits is 2032128, while the sum is 53.

The spelling of 29628747161 in words is "twenty-nine billion, six hundred twenty-eight million, seven hundred forty-seven thousand, one hundred sixty-one".