29442098569 has 27 divisors (see below), whose sum is σ = 32529146517. Its totient is φ = 26635793184.

The previous prime is 29442098549. The next prime is 29442098579. The reversal of 29442098569 is 96589024492.

The square root of 29442098569 is 171587.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1832952969 + 27609145600 = 42813^2 + 166160^2 .

It is not a de Polignac number, because 29442098569 - 2¹⁵ = 29442065801 is a prime.

It is a super-2 number, since 2×29442098569² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29442098519) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 149452179 + ... + 149452375.

Almost surely, 2^29442098569 is an apocalyptic number.

29442098569 is the 171587-th square number.

29442098569 is the 85794-th centered octagonal number.

It is an amenable number.

29442098569 is a deficient number, since it is larger than the sum of its proper divisors (3087047948).

29442098569 is an frugal number, since it uses more digits than its factorization.

29442098569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554 (or 277 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 58.

The spelling of 29442098569 in words is "twenty-nine billion, four hundred forty-two million, ninety-eight thousand, five hundred sixty-nine".