29827680912 has 30 divisors (see below), whose sum is σ = 83476079622. Its totient is φ = 9942560256.

The previous prime is 29827680907. The next prime is 29827680919. The reversal of 29827680912 is 21908672892.

29827680912 is a `hidden beast` number, since 298 + 276 + 80 + 9 + 1 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 22836045456 + 6991635456 = 151116^2 + 83616^2 .

It is not an unprimeable number, because it can be changed into a prime (29827680919) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 103568193 + ... + 103568480.

Almost surely, 2^29827680912 is an apocalyptic number.

It is an amenable number.

29827680912 is an abundant number, since it is smaller than the sum of its proper divisors (53648398710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29827680912 is a wasteful number, since it uses less digits than its factorization.

29827680912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207136687 (or 207136678 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 29827680912 in words is "twenty-nine billion, eight hundred twenty-seven million, six hundred eighty thousand, nine hundred twelve".