29627907121 has 16 divisors (see below), whose sum is σ = 30796819200. Its totient is φ = 28481731200.

The previous prime is 29627907097. The next prime is 29627907131. The reversal of 29627907121 is 12170972692.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29627907121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29627907131) 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, 1639666 + ... + 1657636.

It is an arithmetic number, because the mean of its divisors is an integer number (1924801200).

Almost surely, 2^29627907121 is an apocalyptic number.

It is an amenable number.

29627907121 is a deficient number, since it is larger than the sum of its proper divisors (1168912079).

29627907121 is a wasteful number, since it uses less digits than its factorization.

29627907121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18600.

The product of its (nonzero) digits is 190512, while the sum is 46.

The spelling of 29627907121 in words is "twenty-nine billion, six hundred twenty-seven million, nine hundred seven thousand, one hundred twenty-one".