29442401281 has 4 divisors (see below), whose sum is σ = 29463448000. Its totient is φ = 29421354564.

The previous prime is 29442401279. The next prime is 29442401291. The reversal of 29442401281 is 18210424492.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 29442401281 - 2¹ = 29442401279 is a prime.

It is a super-2 number, since 2×29442401281² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 29442401281.

It is not an unprimeable number, because it can be changed into a prime (29442401291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10521261 + ... + 10524058.

It is an arithmetic number, because the mean of its divisors is an integer number (7365862000).

Almost surely, 2^29442401281 is an apocalyptic number.

It is an amenable number.

29442401281 is a deficient number, since it is larger than the sum of its proper divisors (21046719).

29442401281 is a wasteful number, since it uses less digits than its factorization.

29442401281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21046718.

The product of its (nonzero) digits is 36864, while the sum is 37.

The spelling of 29442401281 in words is "twenty-nine billion, four hundred forty-two million, four hundred one thousand, two hundred eighty-one".