29998889992 has 16 divisors (see below), whose sum is σ = 56334864960. Its totient is φ = 14976259344.

The previous prime is 29998889989. The next prime is 29998890037.

29998889992 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2892708 + ... + 2903059.

It is an arithmetic number, because the mean of its divisors is an integer number (3520929060).

Almost surely, 2^29998889992 is an apocalyptic number.

It is an amenable number.

29998889992 is a deficient number, since it is larger than the sum of its proper divisors (26335974968).

29998889992 is a wasteful number, since it uses less digits than its factorization.

29998889992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5796420 (or 5796416 counting only the distinct ones).

The product of its digits is 1088391168, while the sum is 82.

The spelling of 29998889992 in words is "twenty-nine billion, nine hundred ninety-eight million, eight hundred eighty-nine thousand, nine hundred ninety-two".