29717868144 has 40 divisors (see below), whose sum is σ = 76839661312. Its totient is φ = 9897117120.

The previous prime is 29717868121. The next prime is 29717868161. The reversal of 29717868144 is 44186871792.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 221752 + ... + 329559.

Almost surely, 2^29717868144 is an apocalyptic number.

29717868144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

29717868144 is an abundant number, since it is smaller than the sum of its proper divisors (47121793168).

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

29717868144 is a wasteful number, since it uses less digits than its factorization.

29717868144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552445 (or 552439 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 57.

The spelling of 29717868144 in words is "twenty-nine billion, seven hundred seventeen million, eight hundred sixty-eight thousand, one hundred forty-four".