29430133521 has 8 divisors (see below), whose sum is σ = 39281882304. Its totient is φ = 19599236880.

The previous prime is 29430133507. The next prime is 29430133531. The reversal of 29430133521 is 12533103492.

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

It is not a de Polignac number, because 29430133521 - 2⁹ = 29430133009 is a prime.

It is a super-2 number, since 2×29430133521² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (29430133531) 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, 5209741 + ... + 5215386.

It is an arithmetic number, because the mean of its divisors is an integer number (4910235288).

Almost surely, 2^29430133521 is an apocalyptic number.

It is an amenable number.

29430133521 is a deficient number, since it is larger than the sum of its proper divisors (9851748783).

29430133521 is a wasteful number, since it uses less digits than its factorization.

29430133521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10426071.

The product of its (nonzero) digits is 19440, while the sum is 33.

The spelling of 29430133521 in words is "twenty-nine billion, four hundred thirty million, one hundred thirty-three thousand, five hundred twenty-one".