29889898893 has 24 divisors (see below), whose sum is σ = 43678885536. Its totient is φ = 19694412000.

The previous prime is 29889898867. The next prime is 29889898937. The reversal of 29889898893 is 39889898892.

It is not a de Polignac number, because 29889898893 - 2¹⁶ = 29889833357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29889898793) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 490246 + ... + 547832.

It is an arithmetic number, because the mean of its divisors is an integer number (1819953564).

Almost surely, 2^29889898893 is an apocalyptic number.

It is an amenable number.

29889898893 is a deficient number, since it is larger than the sum of its proper divisors (13788986643).

29889898893 is a wasteful number, since it uses less digits than its factorization.

29889898893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58265 (or 58262 counting only the distinct ones).

The product of its digits is 1289945088, while the sum is 81.

Subtracting 29889898893 from its reverse (39889898892), we obtain a palindrome (9999999999).

The spelling of 29889898893 in words is "twenty-nine billion, eight hundred eighty-nine million, eight hundred ninety-eight thousand, eight hundred ninety-three".