29998156549 has 8 divisors (see below), whose sum is σ = 30132266112. Its totient is φ = 29864093280.

The previous prime is 29998156483. The next prime is 29998156613. The reversal of 29998156549 is 94565189992.

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

It is a cyclic number.

It is not a de Polignac number, because 29998156549 - 2²⁵ = 29964602117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29998150549) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2293422 + ... + 2306464.

It is an arithmetic number, because the mean of its divisors is an integer number (3766533264).

Almost surely, 2^29998156549 is an apocalyptic number.

It is an amenable number.

29998156549 is a deficient number, since it is larger than the sum of its proper divisors (134109563).

29998156549 is a wasteful number, since it uses less digits than its factorization.

29998156549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23147.

The product of its digits is 62985600, while the sum is 67.

The spelling of 29998156549 in words is "twenty-nine billion, nine hundred ninety-eight million, one hundred fifty-six thousand, five hundred forty-nine".