29130882505 has 8 divisors (see below), whose sum is σ = 35435923272. Its totient is φ = 22985463168.

The previous prime is 29130882499. The next prime is 29130882509. The reversal of 29130882505 is 50528803192.

It can be written as a sum of positive squares in 4 ways, for example, as 259435449 + 28871447056 = 16107^2 + 169916^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 29130882505 - 2¹⁹ = 29130358217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29130882509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39904954 + ... + 39905683.

It is an arithmetic number, because the mean of its divisors is an integer number (4429490409).

Almost surely, 2^29130882505 is an apocalyptic number.

It is an amenable number.

29130882505 is a deficient number, since it is larger than the sum of its proper divisors (6305040767).

29130882505 is an equidigital number, since it uses as much as digits as its factorization.

29130882505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79810715.

The product of its (nonzero) digits is 172800, while the sum is 43.

The spelling of 29130882505 in words is "twenty-nine billion, one hundred thirty million, eight hundred eighty-two thousand, five hundred five".