29640821353 has 8 divisors (see below), whose sum is σ = 34822783296. Its totient is φ = 24873416400.

The previous prime is 29640821339. The next prime is 29640821387. The reversal of 29640821353 is 35312804692.

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 29640821353 - 2²⁵ = 29607266921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29640821333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103639093 + ... + 103639378.

It is an arithmetic number, because the mean of its divisors is an integer number (4352847912).

Almost surely, 2^29640821353 is an apocalyptic number.

It is an amenable number.

29640821353 is a deficient number, since it is larger than the sum of its proper divisors (5181961943).

29640821353 is a wasteful number, since it uses less digits than its factorization.

29640821353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207278495.

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 29640821353 in words is "twenty-nine billion, six hundred forty million, eight hundred twenty-one thousand, three hundred fifty-three".