29979453192 has 128 divisors (see below), whose sum is σ = 83643235200. Its totient is φ = 8890785792.

The previous prime is 29979453191. The next prime is 29979453197. The reversal of 29979453192 is 29135497992.

It is a super-3 number, since 3×29979453192³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (29979453191) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5815288 + ... + 5820440.

It is an arithmetic number, because the mean of its divisors is an integer number (653462775).

Almost surely, 2^29979453192 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29979453192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41821617600).

29979453192 is an abundant number, since it is smaller than the sum of its proper divisors (53663782008).

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

29979453192 is a wasteful number, since it uses less digits than its factorization.

29979453192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5847 (or 5843 counting only the distinct ones).

The product of its digits is 11022480, while the sum is 60.

The spelling of 29979453192 in words is "twenty-nine billion, nine hundred seventy-nine million, four hundred fifty-three thousand, one hundred ninety-two".