29900427849 has 24 divisors (see below), whose sum is σ = 45801336672. Its totient is φ = 18731813760.

The previous prime is 29900427829. The next prime is 29900427853. The reversal of 29900427849 is 94872400992.

It is not a de Polignac number, because 29900427849 - 2¹² = 29900423753 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 29900427795 and 29900427804.

It is not an unprimeable number, because it can be changed into a prime (29900427829) 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 23 ways as a sum of consecutive naturals, for example, 53587 + ... + 250344.

It is an arithmetic number, because the mean of its divisors is an integer number (1908389028).

Almost surely, 2^29900427849 is an apocalyptic number.

It is an amenable number.

29900427849 is a deficient number, since it is larger than the sum of its proper divisors (15900908823).

29900427849 is a wasteful number, since it uses less digits than its factorization.

29900427849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304597 (or 304594 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 29900427849 in words is "twenty-nine billion, nine hundred million, four hundred twenty-seven thousand, eight hundred forty-nine".