29479954121 has 8 divisors (see below), whose sum is σ = 29738041344. Its totient is φ = 29222272800.

The previous prime is 29479954117. The next prime is 29479954123. The reversal of 29479954121 is 12145997492.

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 29479954121 - 2² = 29479954117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29479954123) 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, 45341 + ... + 247013.

It is an arithmetic number, because the mean of its divisors is an integer number (3717255168).

Almost surely, 2^29479954121 is an apocalyptic number.

It is an amenable number.

29479954121 is a deficient number, since it is larger than the sum of its proper divisors (258087223).

29479954121 is a wasteful number, since it uses less digits than its factorization.

29479954121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202951.

The product of its digits is 1632960, while the sum is 53.

The spelling of 29479954121 in words is "twenty-nine billion, four hundred seventy-nine million, nine hundred fifty-four thousand, one hundred twenty-one".