29987947008 has 100 divisors (see below), whose sum is σ = 89506249470. Its totient is φ = 9995968512.

The previous prime is 29987946929. The next prime is 29987947027. The reversal of 29987947008 is 80074978992.

29987947008 is a `hidden beast` number, since 2 + 9 + 98 + 79 + 470 + 0 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 23873958144 + 6113988864 = 154512^2 + 78192^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 320073 + ... + 403016.

Almost surely, 2^29987947008 is an apocalyptic number.

It is an amenable number.

29987947008 is an abundant number, since it is smaller than the sum of its proper divisors (59518302462).

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

29987947008 is an frugal number, since it uses more digits than its factorization.

29987947008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723119 (or 723094 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 63.

The spelling of 29987947008 in words is "twenty-nine billion, nine hundred eighty-seven million, nine hundred forty-seven thousand, eight".