29439147841 has 16 divisors (see below), whose sum is σ = 30970160640. Its totient is φ = 27943030080.

The previous prime is 29439147833. The next prime is 29439147851. The reversal of 29439147841 is 14874193492.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 29439147841 - 2³ = 29439147833 is a prime.

It is a super-2 number, since 2×29439147841² (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 (29439147821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4679400 + ... + 4685686.

It is an arithmetic number, because the mean of its divisors is an integer number (1935635040).

Almost surely, 2^29439147841 is an apocalyptic number.

It is an amenable number.

29439147841 is a deficient number, since it is larger than the sum of its proper divisors (1531012799).

29439147841 is a wasteful number, since it uses less digits than its factorization.

29439147841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9024.

The product of its digits is 1741824, while the sum is 52.

The spelling of 29439147841 in words is "twenty-nine billion, four hundred thirty-nine million, one hundred forty-seven thousand, eight hundred forty-one".