29479255081 has 8 divisors (see below), whose sum is σ = 29528218440. Its totient is φ = 29430323328.

The previous prime is 29479255063. The next prime is 29479255109. The reversal of 29479255081 is 18055297492.

It can be written as a sum of positive squares in 4 ways, for example, as 8471361600 + 21007893481 = 92040^2 + 144941^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 29479255081 - 2⁵ = 29479255049 is a prime.

It is a super-2 number, since 2×29479255081² (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 (29479255021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2471925 + ... + 2483821.

It is an arithmetic number, because the mean of its divisors is an integer number (3691027305).

Almost surely, 2^29479255081 is an apocalyptic number.

It is an amenable number.

29479255081 is a deficient number, since it is larger than the sum of its proper divisors (48963359).

29479255081 is a wasteful number, since it uses less digits than its factorization.

29479255081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15803.

The product of its (nonzero) digits is 1814400, while the sum is 52.

The spelling of 29479255081 in words is "twenty-nine billion, four hundred seventy-nine million, two hundred fifty-five thousand, eighty-one".