29427977906 has 8 divisors (see below), whose sum is σ = 44182356204. Its totient is φ = 14700525840.

The previous prime is 29427977899. The next prime is 29427977927. The reversal of 29427977906 is 60977972492.

29427977906 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 27343598881 + 2084379025 = 165359^2 + 45655^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6728825 + ... + 6733196.

Almost surely, 2^29427977906 is an apocalyptic number.

29427977906 is a deficient number, since it is larger than the sum of its proper divisors (14754378298).

29427977906 is a wasteful number, since it uses less digits than its factorization.

29427977906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13463116.

The product of its (nonzero) digits is 24004512, while the sum is 62.

The spelling of 29427977906 in words is "twenty-nine billion, four hundred twenty-seven million, nine hundred seventy-seven thousand, nine hundred six".