29240069987 has 4 divisors (see below), whose sum is σ = 29368881096. Its totient is φ = 29111258880.

The previous prime is 29240069981. The next prime is 29240070011. The reversal of 29240069987 is 78996004292.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 29240069987 - 2⁸ = 29240069731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29240069981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64405214 + ... + 64405667.

It is an arithmetic number, because the mean of its divisors is an integer number (7342220274).

Almost surely, 2^29240069987 is an apocalyptic number.

29240069987 is a deficient number, since it is larger than the sum of its proper divisors (128811109).

29240069987 is a wasteful number, since it uses less digits than its factorization.

29240069987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128811108.

The product of its (nonzero) digits is 3919104, while the sum is 56.

The spelling of 29240069987 in words is "twenty-nine billion, two hundred forty million, sixty-nine thousand, nine hundred eighty-seven".