29442159081 has 12 divisors (see below), whose sum is σ = 43564821300. Its totient is φ = 19149371520.

The previous prime is 29442159029. The next prime is 29442159101. The reversal of 29442159081 is 18095124492.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7747520400 + 21694638681 = 88020^2 + 147291^2 .

It is not a de Polignac number, because 29442159081 - 2¹¹ = 29442157033 is a prime.

It is a super-2 number, since 2×29442159081² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (29442159181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39894156 + ... + 39894893.

It is an arithmetic number, because the mean of its divisors is an integer number (3630401775).

Almost surely, 2^29442159081 is an apocalyptic number.

It is an amenable number.

29442159081 is a deficient number, since it is larger than the sum of its proper divisors (14122662219).

29442159081 is a wasteful number, since it uses less digits than its factorization.

29442159081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79789096 (or 79789093 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The spelling of 29442159081 in words is "twenty-nine billion, four hundred forty-two million, one hundred fifty-nine thousand, eighty-one".