29931013992 has 96 divisors (see below), whose sum is σ = 83173305600. Its totient is φ = 8968016640.

The previous prime is 29931013991. The next prime is 29931014027.

29931013992 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (29931013991) 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, 200553 + ... + 316359.

It is an arithmetic number, because the mean of its divisors is an integer number (866388600).

Almost surely, 2^29931013992 is an apocalyptic number.

29931013992 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29931013992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41586652800).

29931013992 is an abundant number, since it is smaller than the sum of its proper divisors (53242291608).

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

29931013992 is a wasteful number, since it uses less digits than its factorization.

29931013992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115927 (or 115912 counting only the distinct ones).

The product of its (nonzero) digits is 236196, while the sum is 48.

The spelling of 29931013992 in words is "twenty-nine billion, nine hundred thirty-one million, thirteen thousand, nine hundred ninety-two".