29982395898 has 96 divisors (see below), whose sum is σ = 80041118976. Its totient is φ = 7898736384.

The previous prime is 29982395879. The next prime is 29982395929. The reversal of 29982395898 is 89859328992.

29982395898 is a `hidden beast` number, since 2 + 9 + 9 + 8 + 2 + 39 + 589 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1551411 + ... + 1570617.

It is an arithmetic number, because the mean of its divisors is an integer number (833761656).

Almost surely, 2^29982395898 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29982395898, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40020559488).

29982395898 is an abundant number, since it is smaller than the sum of its proper divisors (50058723078).

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

29982395898 is a wasteful number, since it uses less digits than its factorization.

29982395898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20188 (or 20185 counting only the distinct ones).

The product of its digits is 201553920, while the sum is 72.

The spelling of 29982395898 in words is "twenty-nine billion, nine hundred eighty-two million, three hundred ninety-five thousand, eight hundred ninety-eight".